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Finding the Fourth Proportional to 578,829.80, 866,555.10 and 412,941.80

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Solution

The fourth proportional to 578,829.80, 866,555.10 and 412,941.80 is: 618,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,829.80 : 866,555.10 = 412,941.80 : x
  2. Step 2: Convert to fraction form
    578,829.80/866,555.10 = 412,941.80/x
  3. Step 3: Cross multiply
    578,829.80x = 866,555.10 × 412,941.80
  4. Step 4: Simplify right side
    578,829.80x = 357,836,822,793.18
  5. Step 5: Solve for x
    x = 357,836,822,793.18/578,829.80
  6. Step 6: Final answer
    x = 618,207.33

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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.