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Finding the Fourth Proportional to 474,487.92, 654,765.12 and 259,585.20

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Solution

The fourth proportional to 474,487.92, 654,765.12 and 259,585.20 is: 358,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,487.92 : 654,765.12 = 259,585.20 : x
  2. Step 2: Convert to fraction form
    474,487.92/654,765.12 = 259,585.20/x
  3. Step 3: Cross multiply
    474,487.92x = 654,765.12 × 259,585.20
  4. Step 4: Simplify right side
    474,487.92x = 169,967,334,628.22
  5. Step 5: Solve for x
    x = 169,967,334,628.22/474,487.92
  6. Step 6: Final answer
    x = 358,212.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.