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Finding the Fourth Proportional to 723,886.71, 999,052.23 and 417,962.57

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Solution

The fourth proportional to 723,886.71, 999,052.23 and 417,962.57 is: 576,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,886.71 : 999,052.23 = 417,962.57 : x
  2. Step 2: Convert to fraction form
    723,886.71/999,052.23 = 417,962.57/x
  3. Step 3: Cross multiply
    723,886.71x = 999,052.23 × 417,962.57
  4. Step 4: Simplify right side
    723,886.71x = 417,566,432,619.77
  5. Step 5: Solve for x
    x = 417,566,432,619.77/723,886.71
  6. Step 6: Final answer
    x = 576,839.48

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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.