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Finding the Fourth Proportional to 363,152.60, 544,728.90 and 318,829.40

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Solution

The fourth proportional to 363,152.60, 544,728.90 and 318,829.40 is: 478,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,152.60 : 544,728.90 = 318,829.40 : x
  2. Step 2: Convert to fraction form
    363,152.60/544,728.90 = 318,829.40/x
  3. Step 3: Cross multiply
    363,152.60x = 544,728.90 × 318,829.40
  4. Step 4: Simplify right side
    363,152.60x = 173,675,588,349.66
  5. Step 5: Solve for x
    x = 173,675,588,349.66/363,152.60
  6. Step 6: Final answer
    x = 478,244.10

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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.