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Finding the Fourth Proportional to 585,118.20, 807,458.49 and 316,846.20

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Solution

The fourth proportional to 585,118.20, 807,458.49 and 316,846.20 is: 437,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,118.20 : 807,458.49 = 316,846.20 : x
  2. Step 2: Convert to fraction form
    585,118.20/807,458.49 = 316,846.20/x
  3. Step 3: Cross multiply
    585,118.20x = 807,458.49 × 316,846.20
  4. Step 4: Simplify right side
    585,118.20x = 255,840,154,214.24
  5. Step 5: Solve for x
    x = 255,840,154,214.24/585,118.20
  6. Step 6: Final answer
    x = 437,245.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.