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Finding the Fourth Proportional to 883,143.60, 1,218,744 and 501,176.76

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Solution

The fourth proportional to 883,143.60, 1,218,744 and 501,176.76 is: 691,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,143.60 : 1,218,744 = 501,176.76 : x
  2. Step 2: Convert to fraction form
    883,143.60/1,218,744 = 501,176.76/x
  3. Step 3: Cross multiply
    883,143.60x = 1,218,744 × 501,176.76
  4. Step 4: Simplify right side
    883,143.60x = 610,806,169,189.44
  5. Step 5: Solve for x
    x = 610,806,169,189.44/883,143.60
  6. Step 6: Final answer
    x = 691,627.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.