Home / 840,776.38-1,160,274.60-458,803.16

Finding the Fourth Proportional to 840,776.38, 1,160,274.60 and 458,803.16

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Solution

The fourth proportional to 840,776.38, 1,160,274.60 and 458,803.16 is: 633,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,776.38 : 1,160,274.60 = 458,803.16 : x
  2. Step 2: Convert to fraction form
    840,776.38/1,160,274.60 = 458,803.16/x
  3. Step 3: Cross multiply
    840,776.38x = 1,160,274.60 × 458,803.16
  4. Step 4: Simplify right side
    840,776.38x = 532,337,652,947.74
  5. Step 5: Solve for x
    x = 532,337,652,947.74/840,776.38
  6. Step 6: Final answer
    x = 633,150.10

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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.