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Finding the Fourth Proportional to 586,062.97, 879,089.51 and 458,086.90

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Solution

The fourth proportional to 586,062.97, 879,089.51 and 458,086.90 is: 687,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,062.97 : 879,089.51 = 458,086.90 : x
  2. Step 2: Convert to fraction form
    586,062.97/879,089.51 = 458,086.90/x
  3. Step 3: Cross multiply
    586,062.97x = 879,089.51 × 458,086.90
  4. Step 4: Simplify right side
    586,062.97x = 402,699,388,458.42
  5. Step 5: Solve for x
    x = 402,699,388,458.42/586,062.97
  6. Step 6: Final answer
    x = 687,126.48

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Double scale
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Similar ratio
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1.5x scale

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.