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Finding the Fourth Proportional to 532,982.79, 735,280.00 and 317,997.86

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Solution

The fourth proportional to 532,982.79, 735,280.00 and 317,997.86 is: 438,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,982.79 : 735,280.00 = 317,997.86 : x
  2. Step 2: Convert to fraction form
    532,982.79/735,280.00 = 317,997.86/x
  3. Step 3: Cross multiply
    532,982.79x = 735,280.00 × 317,997.86
  4. Step 4: Simplify right side
    532,982.79x = 233,817,462,029.41
  5. Step 5: Solve for x
    x = 233,817,462,029.41/532,982.79
  6. Step 6: Final answer
    x = 438,696.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.