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Finding the Fourth Proportional to 556,147.20, 834,220.80 and 534,374.40

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Solution

The fourth proportional to 556,147.20, 834,220.80 and 534,374.40 is: 801,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,147.20 : 834,220.80 = 534,374.40 : x
  2. Step 2: Convert to fraction form
    556,147.20/834,220.80 = 534,374.40/x
  3. Step 3: Cross multiply
    556,147.20x = 834,220.80 × 534,374.40
  4. Step 4: Simplify right side
    556,147.20x = 445,786,239,467.52
  5. Step 5: Solve for x
    x = 445,786,239,467.52/556,147.20
  6. Step 6: Final answer
    x = 801,561.60

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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.