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Finding the Fourth Proportional to 597,898.80, 897,139.80 and 455,695.20

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Solution

The fourth proportional to 597,898.80, 897,139.80 and 455,695.20 is: 683,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,898.80 : 897,139.80 = 455,695.20 : x
  2. Step 2: Convert to fraction form
    597,898.80/897,139.80 = 455,695.20/x
  3. Step 3: Cross multiply
    597,898.80x = 897,139.80 × 455,695.20
  4. Step 4: Simplify right side
    597,898.80x = 408,822,300,588.96
  5. Step 5: Solve for x
    x = 408,822,300,588.96/597,898.80
  6. Step 6: Final answer
    x = 683,765.05

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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.