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Finding the Fourth Proportional to 719,117.70, 992,430.95 and 413,294.10

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Solution

The fourth proportional to 719,117.70, 992,430.95 and 413,294.10 is: 570,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,117.70 : 992,430.95 = 413,294.10 : x
  2. Step 2: Convert to fraction form
    719,117.70/992,430.95 = 413,294.10/x
  3. Step 3: Cross multiply
    719,117.70x = 992,430.95 × 413,294.10
  4. Step 4: Simplify right side
    719,117.70x = 410,165,854,225.92
  5. Step 5: Solve for x
    x = 410,165,854,225.92/719,117.70
  6. Step 6: Final answer
    x = 570,373.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.