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Finding the Fourth Proportional to 474,841.70, 655,281.64 and 259,981.82

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Solution

The fourth proportional to 474,841.70, 655,281.64 and 259,981.82 is: 358,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,841.70 : 655,281.64 = 259,981.82 : x
  2. Step 2: Convert to fraction form
    474,841.70/655,281.64 = 259,981.82/x
  3. Step 3: Cross multiply
    474,841.70x = 655,281.64 × 259,981.82
  4. Step 4: Simplify right side
    474,841.70x = 170,361,313,379.79
  5. Step 5: Solve for x
    x = 170,361,313,379.79/474,841.70
  6. Step 6: Final answer
    x = 358,774.96

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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.