Home / 656,972.80-985,718.40-257,545.60

Finding the Fourth Proportional to 656,972.80, 985,718.40 and 257,545.60

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Solution

The fourth proportional to 656,972.80, 985,718.40 and 257,545.60 is: 386,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,972.80 : 985,718.40 = 257,545.60 : x
  2. Step 2: Convert to fraction form
    656,972.80/985,718.40 = 257,545.60/x
  3. Step 3: Cross multiply
    656,972.80x = 985,718.40 × 257,545.60
  4. Step 4: Simplify right side
    656,972.80x = 253,867,436,759.04
  5. Step 5: Solve for x
    x = 253,867,436,759.04/656,972.80
  6. Step 6: Final answer
    x = 386,420.01

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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.