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Finding the Fourth Proportional to 424,981.14, 634,362.40 and 374,537.30

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Solution

The fourth proportional to 424,981.14, 634,362.40 and 374,537.30 is: 559,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,981.14 : 634,362.40 = 374,537.30 : x
  2. Step 2: Convert to fraction form
    424,981.14/634,362.40 = 374,537.30/x
  3. Step 3: Cross multiply
    424,981.14x = 634,362.40 × 374,537.30
  4. Step 4: Simplify right side
    424,981.14x = 237,592,381,382.17
  5. Step 5: Solve for x
    x = 237,592,381,382.17/424,981.14
  6. Step 6: Final answer
    x = 559,065.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.