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Finding the Fourth Proportional to 546,859.70, 820,289.55 and 472,064.30

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Solution

The fourth proportional to 546,859.70, 820,289.55 and 472,064.30 is: 708,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,859.70 : 820,289.55 = 472,064.30 : x
  2. Step 2: Convert to fraction form
    546,859.70/820,289.55 = 472,064.30/x
  3. Step 3: Cross multiply
    546,859.70x = 820,289.55 × 472,064.30
  4. Step 4: Simplify right side
    546,859.70x = 387,229,412,218.07
  5. Step 5: Solve for x
    x = 387,229,412,218.07/546,859.70
  6. Step 6: Final answer
    x = 708,096.45

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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.