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Finding the Fourth Proportional to 614,431.80, 922,230.90 and 525,785.40

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Solution

The fourth proportional to 614,431.80, 922,230.90 and 525,785.40 is: 789,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,431.80 : 922,230.90 = 525,785.40 : x
  2. Step 2: Convert to fraction form
    614,431.80/922,230.90 = 525,785.40/x
  3. Step 3: Cross multiply
    614,431.80x = 922,230.90 × 525,785.40
  4. Step 4: Simplify right side
    614,431.80x = 484,895,542,648.86
  5. Step 5: Solve for x
    x = 484,895,542,648.86/614,431.80
  6. Step 6: Final answer
    x = 789,177.16

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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.