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Finding the Fourth Proportional to 647,065.80, 970,598.70 and 584,080.20

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Solution

The fourth proportional to 647,065.80, 970,598.70 and 584,080.20 is: 876,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,065.80 : 970,598.70 = 584,080.20 : x
  2. Step 2: Convert to fraction form
    647,065.80/970,598.70 = 584,080.20/x
  3. Step 3: Cross multiply
    647,065.80x = 970,598.70 × 584,080.20
  4. Step 4: Simplify right side
    647,065.80x = 566,907,482,815.74
  5. Step 5: Solve for x
    x = 566,907,482,815.74/647,065.80
  6. Step 6: Final answer
    x = 876,120.30

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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.