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Finding the Fourth Proportional to 696,937.34, 961,831.49 and 386,869.10

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Solution

The fourth proportional to 696,937.34, 961,831.49 and 386,869.10 is: 533,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,937.34 : 961,831.49 = 386,869.10 : x
  2. Step 2: Convert to fraction form
    696,937.34/961,831.49 = 386,869.10/x
  3. Step 3: Cross multiply
    696,937.34x = 961,831.49 × 386,869.10
  4. Step 4: Simplify right side
    696,937.34x = 372,102,885,292.54
  5. Step 5: Solve for x
    x = 372,102,885,292.54/696,937.34
  6. Step 6: Final answer
    x = 533,911.54

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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.