Home / 945,515.90-1,304,810.15-515,795.91

Finding the Fourth Proportional to 945,515.90, 1,304,810.15 and 515,795.91

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Solution

The fourth proportional to 945,515.90, 1,304,810.15 and 515,795.91 is: 711,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,515.90 : 1,304,810.15 = 515,795.91 : x
  2. Step 2: Convert to fraction form
    945,515.90/1,304,810.15 = 515,795.91/x
  3. Step 3: Cross multiply
    945,515.90x = 1,304,810.15 × 515,795.91
  4. Step 4: Simplify right side
    945,515.90x = 673,015,736,117.51
  5. Step 5: Solve for x
    x = 673,015,736,117.51/945,515.90
  6. Step 6: Final answer
    x = 711,797.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.