Home / 813,725.56-1,122,939.24-451,140.12

Finding the Fourth Proportional to 813,725.56, 1,122,939.24 and 451,140.12

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Solution

The fourth proportional to 813,725.56, 1,122,939.24 and 451,140.12 is: 622,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,725.56 : 1,122,939.24 = 451,140.12 : x
  2. Step 2: Convert to fraction form
    813,725.56/1,122,939.24 = 451,140.12/x
  3. Step 3: Cross multiply
    813,725.56x = 1,122,939.24 × 451,140.12
  4. Step 4: Simplify right side
    813,725.56x = 506,602,943,486.31
  5. Step 5: Solve for x
    x = 506,602,943,486.31/813,725.56
  6. Step 6: Final answer
    x = 622,572.24

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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.