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Finding the Fourth Proportional to 637,260.80, 955,891.20 and 525,286.40

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Solution

The fourth proportional to 637,260.80, 955,891.20 and 525,286.40 is: 787,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,260.80 : 955,891.20 = 525,286.40 : x
  2. Step 2: Convert to fraction form
    637,260.80/955,891.20 = 525,286.40/x
  3. Step 3: Cross multiply
    637,260.80x = 955,891.20 × 525,286.40
  4. Step 4: Simplify right side
    637,260.80x = 502,116,647,239.68
  5. Step 5: Solve for x
    x = 502,116,647,239.68/637,260.80
  6. Step 6: Final answer
    x = 787,929.60

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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.