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Finding the Fourth Proportional to 586,663.28, 880,247.78 and 316,737.82

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Solution

The fourth proportional to 586,663.28, 880,247.78 and 316,737.82 is: 475,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,663.28 : 880,247.78 = 316,737.82 : x
  2. Step 2: Convert to fraction form
    586,663.28/880,247.78 = 316,737.82/x
  3. Step 3: Cross multiply
    586,663.28x = 880,247.78 × 316,737.82
  4. Step 4: Simplify right side
    586,663.28x = 278,807,762,897.04
  5. Step 5: Solve for x
    x = 278,807,762,897.04/586,663.28
  6. Step 6: Final answer
    x = 475,243.25

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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.