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Finding the Fourth Proportional to 586,331.60, 879,497.40 and 397,374.80

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Solution

The fourth proportional to 586,331.60, 879,497.40 and 397,374.80 is: 596,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,331.60 : 879,497.40 = 397,374.80 : x
  2. Step 2: Convert to fraction form
    586,331.60/879,497.40 = 397,374.80/x
  3. Step 3: Cross multiply
    586,331.60x = 879,497.40 × 397,374.80
  4. Step 4: Simplify right side
    586,331.60x = 349,490,103,425.52
  5. Step 5: Solve for x
    x = 349,490,103,425.52/586,331.60
  6. Step 6: Final answer
    x = 596,062.20

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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.