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Finding the Fourth Proportional to 881,877.78, 1,216,956.03 and 519,316.92

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Solution

The fourth proportional to 881,877.78, 1,216,956.03 and 519,316.92 is: 716,636.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,877.78 : 1,216,956.03 = 519,316.92 : x
  2. Step 2: Convert to fraction form
    881,877.78/1,216,956.03 = 519,316.92/x
  3. Step 3: Cross multiply
    881,877.78x = 1,216,956.03 × 519,316.92
  4. Step 4: Simplify right side
    881,877.78x = 631,985,857,275.03
  5. Step 5: Solve for x
    x = 631,985,857,275.03/881,877.78
  6. Step 6: Final answer
    x = 716,636.56

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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.