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Finding the Fourth Proportional to 488,285.40, 732,428.10 and 252,089.40

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Solution

The fourth proportional to 488,285.40, 732,428.10 and 252,089.40 is: 378,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,285.40 : 732,428.10 = 252,089.40 : x
  2. Step 2: Convert to fraction form
    488,285.40/732,428.10 = 252,089.40/x
  3. Step 3: Cross multiply
    488,285.40x = 732,428.10 × 252,089.40
  4. Step 4: Simplify right side
    488,285.40x = 184,637,360,272.14
  5. Step 5: Solve for x
    x = 184,637,360,272.14/488,285.40
  6. Step 6: Final answer
    x = 378,134.10

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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.