Home / 1,557,161.40-2,335,454.10-434,998.20

Finding the Fourth Proportional to 1,557,161.40, 2,335,454.10 and 434,998.20

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Solution

The fourth proportional to 1,557,161.40, 2,335,454.10 and 434,998.20 is: 652,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,161.40 : 2,335,454.10 = 434,998.20 : x
  2. Step 2: Convert to fraction form
    1,557,161.40/2,335,454.10 = 434,998.20/x
  3. Step 3: Cross multiply
    1,557,161.40x = 2,335,454.10 × 434,998.20
  4. Step 4: Simplify right side
    1,557,161.40x = 1,015,918,329,682.62
  5. Step 5: Solve for x
    x = 1,015,918,329,682.62/1,557,161.40
  6. Step 6: Final answer
    x = 652,416.85

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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.