Home / 591,609.40-887,414.10-404,985.40

Finding the Fourth Proportional to 591,609.40, 887,414.10 and 404,985.40

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Solution

The fourth proportional to 591,609.40, 887,414.10 and 404,985.40 is: 607,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,609.40 : 887,414.10 = 404,985.40 : x
  2. Step 2: Convert to fraction form
    591,609.40/887,414.10 = 404,985.40/x
  3. Step 3: Cross multiply
    591,609.40x = 887,414.10 × 404,985.40
  4. Step 4: Simplify right side
    591,609.40x = 359,389,754,254.14
  5. Step 5: Solve for x
    x = 359,389,754,254.14/591,609.40
  6. Step 6: Final answer
    x = 607,478.10

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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.