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Finding the Fourth Proportional to 545,569.38, 818,482.86 and 171,592.38

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Solution

The fourth proportional to 545,569.38, 818,482.86 and 171,592.38 is: 257,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,569.38 : 818,482.86 = 171,592.38 : x
  2. Step 2: Convert to fraction form
    545,569.38/818,482.86 = 171,592.38/x
  3. Step 3: Cross multiply
    545,569.38x = 818,482.86 × 171,592.38
  4. Step 4: Simplify right side
    545,569.38x = 140,445,421,936.61
  5. Step 5: Solve for x
    x = 140,445,421,936.61/545,569.38
  6. Step 6: Final answer
    x = 257,429.08

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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.