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Finding the Fourth Proportional to 586,840.10, 880,587.13 and 316,962.78

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Solution

The fourth proportional to 586,840.10, 880,587.13 and 316,962.78 is: 475,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,840.10 : 880,587.13 = 316,962.78 : x
  2. Step 2: Convert to fraction form
    586,840.10/880,587.13 = 316,962.78/x
  3. Step 3: Cross multiply
    586,840.10x = 880,587.13 × 316,962.78
  4. Step 4: Simplify right side
    586,840.10x = 279,113,344,757.02
  5. Step 5: Solve for x
    x = 279,113,344,757.02/586,840.10
  6. Step 6: Final answer
    x = 475,620.78

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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.