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Finding the Fourth Proportional to 411,109.04, 616,532.34 and 130,560.68

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Solution

The fourth proportional to 411,109.04, 616,532.34 and 130,560.68 is: 195,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,109.04 : 616,532.34 = 130,560.68 : x
  2. Step 2: Convert to fraction form
    411,109.04/616,532.34 = 130,560.68/x
  3. Step 3: Cross multiply
    411,109.04x = 616,532.34 × 130,560.68
  4. Step 4: Simplify right side
    411,109.04x = 80,494,881,552.39
  5. Step 5: Solve for x
    x = 80,494,881,552.39/411,109.04
  6. Step 6: Final answer
    x = 195,799.35

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1.5x scale

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.