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Finding the Fourth Proportional to 608,899.20, 911,599.20 and 545,913.60

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Solution

The fourth proportional to 608,899.20, 911,599.20 and 545,913.60 is: 817,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,899.20 : 911,599.20 = 545,913.60 : x
  2. Step 2: Convert to fraction form
    608,899.20/911,599.20 = 545,913.60/x
  3. Step 3: Cross multiply
    608,899.20x = 911,599.20 × 545,913.60
  4. Step 4: Simplify right side
    608,899.20x = 497,654,401,029.12
  5. Step 5: Solve for x
    x = 497,654,401,029.12/608,899.20
  6. Step 6: Final answer
    x = 817,301.78

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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.