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Finding the Fourth Proportional to 604,891.80, 907,337.70 and 392,315.40

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Solution

The fourth proportional to 604,891.80, 907,337.70 and 392,315.40 is: 588,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,891.80 : 907,337.70 = 392,315.40 : x
  2. Step 2: Convert to fraction form
    604,891.80/907,337.70 = 392,315.40/x
  3. Step 3: Cross multiply
    604,891.80x = 907,337.70 × 392,315.40
  4. Step 4: Simplify right side
    604,891.80x = 355,962,552,710.58
  5. Step 5: Solve for x
    x = 355,962,552,710.58/604,891.80
  6. Step 6: Final answer
    x = 588,473.10

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Similar ratio
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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.