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Finding the Fourth Proportional to 936,287.20, 1,404,430.80 and 841,808.80

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Solution

The fourth proportional to 936,287.20, 1,404,430.80 and 841,808.80 is: 1,262,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,287.20 : 1,404,430.80 = 841,808.80 : x
  2. Step 2: Convert to fraction form
    936,287.20/1,404,430.80 = 841,808.80/x
  3. Step 3: Cross multiply
    936,287.20x = 1,404,430.80 × 841,808.80
  4. Step 4: Simplify right side
    936,287.20x = 1,182,262,206,431.04
  5. Step 5: Solve for x
    x = 1,182,262,206,431.04/936,287.20
  6. Step 6: Final answer
    x = 1,262,713.20

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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.