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Finding the Fourth Proportional to 713,167.80, 1,069,751.70 and 608,191.80

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Solution

The fourth proportional to 713,167.80, 1,069,751.70 and 608,191.80 is: 912,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,167.80 : 1,069,751.70 = 608,191.80 : x
  2. Step 2: Convert to fraction form
    713,167.80/1,069,751.70 = 608,191.80/x
  3. Step 3: Cross multiply
    713,167.80x = 1,069,751.70 × 608,191.80
  4. Step 4: Simplify right side
    713,167.80x = 650,614,211,976.06
  5. Step 5: Solve for x
    x = 650,614,211,976.06/713,167.80
  6. Step 6: Final answer
    x = 912,287.70

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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.