Home / 1,278,166,496.30-1,917,249,744.45-658,293,713.90

Finding the Fourth Proportional to 1,278,166,496.30, 1,917,249,744.45 and 658,293,713.90

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Solution

The fourth proportional to 1,278,166,496.30, 1,917,249,744.45 and 658,293,713.90 is: 987,440,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,166,496.30 : 1,917,249,744.45 = 658,293,713.90 : x
  2. Step 2: Convert to fraction form
    1,278,166,496.30/1,917,249,744.45 = 658,293,713.90/x
  3. Step 3: Cross multiply
    1,278,166,496.30x = 1,917,249,744.45 × 658,293,713.90
  4. Step 4: Simplify right side
    1,278,166,496.30x = 1,262,113,454,747,816,448
  5. Step 5: Solve for x
    x = 1,262,113,454,747,816,448/1,278,166,496.30
  6. Step 6: Final answer
    x = 987,440,570.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.