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Finding the Fourth Proportional to 555,009.80, 832,514.70 and 415,041.80

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Solution

The fourth proportional to 555,009.80, 832,514.70 and 415,041.80 is: 622,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,009.80 : 832,514.70 = 415,041.80 : x
  2. Step 2: Convert to fraction form
    555,009.80/832,514.70 = 415,041.80/x
  3. Step 3: Cross multiply
    555,009.80x = 832,514.70 × 415,041.80
  4. Step 4: Simplify right side
    555,009.80x = 345,528,399,614.46
  5. Step 5: Solve for x
    x = 345,528,399,614.46/555,009.80
  6. Step 6: Final answer
    x = 622,562.70

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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.