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Finding the Fourth Proportional to 708,332.50, 977,470.39 and 386,035.67

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Solution

The fourth proportional to 708,332.50, 977,470.39 and 386,035.67 is: 532,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,332.50 : 977,470.39 = 386,035.67 : x
  2. Step 2: Convert to fraction form
    708,332.50/977,470.39 = 386,035.67/x
  3. Step 3: Cross multiply
    708,332.50x = 977,470.39 × 386,035.67
  4. Step 4: Simplify right side
    708,332.50x = 377,338,437,663.58
  5. Step 5: Solve for x
    x = 377,338,437,663.58/708,332.50
  6. Step 6: Final answer
    x = 532,713.72

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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.