Home / 825,641.28-1,138,901.08-519,231.64

Finding the Fourth Proportional to 825,641.28, 1,138,901.08 and 519,231.64

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Solution

The fourth proportional to 825,641.28, 1,138,901.08 and 519,231.64 is: 716,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,641.28 : 1,138,901.08 = 519,231.64 : x
  2. Step 2: Convert to fraction form
    825,641.28/1,138,901.08 = 519,231.64/x
  3. Step 3: Cross multiply
    825,641.28x = 1,138,901.08 × 519,231.64
  4. Step 4: Simplify right side
    825,641.28x = 591,353,475,566.17
  5. Step 5: Solve for x
    x = 591,353,475,566.17/825,641.28
  6. Step 6: Final answer
    x = 716,235.36

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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.