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Finding the Fourth Proportional to 355,501.60, 532,215.60 and 318,176.80

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Solution

The fourth proportional to 355,501.60, 532,215.60 and 318,176.80 is: 476,337.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,501.60 : 532,215.60 = 318,176.80 : x
  2. Step 2: Convert to fraction form
    355,501.60/532,215.60 = 318,176.80/x
  3. Step 3: Cross multiply
    355,501.60x = 532,215.60 × 318,176.80
  4. Step 4: Simplify right side
    355,501.60x = 169,338,656,518.08
  5. Step 5: Solve for x
    x = 169,338,656,518.08/355,501.60
  6. Step 6: Final answer
    x = 476,337.26

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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.