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Finding the Fourth Proportional to 403,581.60, 604,585.08 and 245,417.76

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Solution

The fourth proportional to 403,581.60, 604,585.08 and 245,417.76 is: 367,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,581.60 : 604,585.08 = 245,417.76 : x
  2. Step 2: Convert to fraction form
    403,581.60/604,585.08 = 245,417.76/x
  3. Step 3: Cross multiply
    403,581.60x = 604,585.08 × 245,417.76
  4. Step 4: Simplify right side
    403,581.60x = 148,375,916,063.02
  5. Step 5: Solve for x
    x = 148,375,916,063.02/403,581.60
  6. Step 6: Final answer
    x = 367,647.87

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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.