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Finding the Fourth Proportional to 584,008.40, 875,947.80 and 478,643.60

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Solution

The fourth proportional to 584,008.40, 875,947.80 and 478,643.60 is: 717,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,008.40 : 875,947.80 = 478,643.60 : x
  2. Step 2: Convert to fraction form
    584,008.40/875,947.80 = 478,643.60/x
  3. Step 3: Cross multiply
    584,008.40x = 875,947.80 × 478,643.60
  4. Step 4: Simplify right side
    584,008.40x = 419,266,808,404.08
  5. Step 5: Solve for x
    x = 419,266,808,404.08/584,008.40
  6. Step 6: Final answer
    x = 717,912.29

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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.