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Finding the Fourth Proportional to 474,283.55, 654,516.45 and 259,418.90

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Solution

The fourth proportional to 474,283.55, 654,516.45 and 259,418.90 is: 358,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,283.55 : 654,516.45 = 259,418.90 : x
  2. Step 2: Convert to fraction form
    474,283.55/654,516.45 = 259,418.90/x
  3. Step 3: Cross multiply
    474,283.55x = 654,516.45 × 259,418.90
  4. Step 4: Simplify right side
    474,283.55x = 169,793,939,127.20
  5. Step 5: Solve for x
    x = 169,793,939,127.20/474,283.55
  6. Step 6: Final answer
    x = 358,000.90

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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.