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Finding the Fourth Proportional to 578,295.60, 866,412.45 and 493,192.32

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Solution

The fourth proportional to 578,295.60, 866,412.45 and 493,192.32 is: 738,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,295.60 : 866,412.45 = 493,192.32 : x
  2. Step 2: Convert to fraction form
    578,295.60/866,412.45 = 493,192.32/x
  3. Step 3: Cross multiply
    578,295.60x = 866,412.45 × 493,192.32
  4. Step 4: Simplify right side
    578,295.60x = 427,307,966,292.38
  5. Step 5: Solve for x
    x = 427,307,966,292.38/578,295.60
  6. Step 6: Final answer
    x = 738,909.25

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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.