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Finding the Fourth Proportional to 616,205.85, 850,358.30 and 344,320.60

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Solution

The fourth proportional to 616,205.85, 850,358.30 and 344,320.60 is: 475,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,205.85 : 850,358.30 = 344,320.60 : x
  2. Step 2: Convert to fraction form
    616,205.85/850,358.30 = 344,320.60/x
  3. Step 3: Cross multiply
    616,205.85x = 850,358.30 × 344,320.60
  4. Step 4: Simplify right side
    616,205.85x = 292,795,875,819.19
  5. Step 5: Solve for x
    x = 292,795,875,819.19/616,205.85
  6. Step 6: Final answer
    x = 475,159.20

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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.