Home / 913,753.72-1,261,112.08-526,494.96

Finding the Fourth Proportional to 913,753.72, 1,261,112.08 and 526,494.96

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Solution

The fourth proportional to 913,753.72, 1,261,112.08 and 526,494.96 is: 726,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,753.72 : 1,261,112.08 = 526,494.96 : x
  2. Step 2: Convert to fraction form
    913,753.72/1,261,112.08 = 526,494.96/x
  3. Step 3: Cross multiply
    913,753.72x = 1,261,112.08 × 526,494.96
  4. Step 4: Simplify right side
    913,753.72x = 663,969,156,962.76
  5. Step 5: Solve for x
    x = 663,969,156,962.76/913,753.72
  6. Step 6: Final answer
    x = 726,639.08

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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.