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Finding the Fourth Proportional to 586,817.76, 810,304.92 and 372,338.40

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Solution

The fourth proportional to 586,817.76, 810,304.92 and 372,338.40 is: 514,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,817.76 : 810,304.92 = 372,338.40 : x
  2. Step 2: Convert to fraction form
    586,817.76/810,304.92 = 372,338.40/x
  3. Step 3: Cross multiply
    586,817.76x = 810,304.92 × 372,338.40
  4. Step 4: Simplify right side
    586,817.76x = 301,707,637,424.93
  5. Step 5: Solve for x
    x = 301,707,637,424.93/586,817.76
  6. Step 6: Final answer
    x = 514,141.97

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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.