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Finding the Fourth Proportional to 604,966.20, 907,449.30 and 447,502.20

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Solution

The fourth proportional to 604,966.20, 907,449.30 and 447,502.20 is: 671,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,966.20 : 907,449.30 = 447,502.20 : x
  2. Step 2: Convert to fraction form
    604,966.20/907,449.30 = 447,502.20/x
  3. Step 3: Cross multiply
    604,966.20x = 907,449.30 × 447,502.20
  4. Step 4: Simplify right side
    604,966.20x = 406,085,558,138.46
  5. Step 5: Solve for x
    x = 406,085,558,138.46/604,966.20
  6. Step 6: Final answer
    x = 671,253.30

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Half scale
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Double scale
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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.