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Finding the Fourth Proportional to 487,882.63, 731,068.18 and 338,413.51

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Solution

The fourth proportional to 487,882.63, 731,068.18 and 338,413.51 is: 507,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,882.63 : 731,068.18 = 338,413.51 : x
  2. Step 2: Convert to fraction form
    487,882.63/731,068.18 = 338,413.51/x
  3. Step 3: Cross multiply
    487,882.63x = 731,068.18 × 338,413.51
  4. Step 4: Simplify right side
    487,882.63x = 247,403,348,843.11
  5. Step 5: Solve for x
    x = 247,403,348,843.11/487,882.63
  6. Step 6: Final answer
    x = 507,096.04

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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.