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Finding the Fourth Proportional to 826,154, 1,139,181.84 and 571,062.32

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Solution

The fourth proportional to 826,154, 1,139,181.84 and 571,062.32 is: 787,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,154 : 1,139,181.84 = 571,062.32 : x
  2. Step 2: Convert to fraction form
    826,154/1,139,181.84 = 571,062.32/x
  3. Step 3: Cross multiply
    826,154x = 1,139,181.84 × 571,062.32
  4. Step 4: Simplify right side
    826,154x = 650,543,824,452.27
  5. Step 5: Solve for x
    x = 650,543,824,452.27/826,154
  6. Step 6: Final answer
    x = 787,436.51

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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.