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Finding the Fourth Proportional to 492,539.68, 738,851.40 and 155,490.16

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Solution

The fourth proportional to 492,539.68, 738,851.40 and 155,490.16 is: 233,248.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,539.68 : 738,851.40 = 155,490.16 : x
  2. Step 2: Convert to fraction form
    492,539.68/738,851.40 = 155,490.16/x
  3. Step 3: Cross multiply
    492,539.68x = 738,851.40 × 155,490.16
  4. Step 4: Simplify right side
    492,539.68x = 114,884,122,402.22
  5. Step 5: Solve for x
    x = 114,884,122,402.22/492,539.68
  6. Step 6: Final answer
    x = 233,248.46

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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.