Home / 659,916.90-991,078.20-577,248.30

Finding the Fourth Proportional to 659,916.90, 991,078.20 and 577,248.30

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Solution

The fourth proportional to 659,916.90, 991,078.20 and 577,248.30 is: 866,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,916.90 : 991,078.20 = 577,248.30 : x
  2. Step 2: Convert to fraction form
    659,916.90/991,078.20 = 577,248.30/x
  3. Step 3: Cross multiply
    659,916.90x = 991,078.20 × 577,248.30
  4. Step 4: Simplify right side
    659,916.90x = 572,098,206,117.06
  5. Step 5: Solve for x
    x = 572,098,206,117.06/659,916.90
  6. Step 6: Final answer
    x = 866,924.62

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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.