Home / 598,921.70-898,382.55-430,085.30

Finding the Fourth Proportional to 598,921.70, 898,382.55 and 430,085.30

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Solution

The fourth proportional to 598,921.70, 898,382.55 and 430,085.30 is: 645,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,921.70 : 898,382.55 = 430,085.30 : x
  2. Step 2: Convert to fraction form
    598,921.70/898,382.55 = 430,085.30/x
  3. Step 3: Cross multiply
    598,921.70x = 898,382.55 × 430,085.30
  4. Step 4: Simplify right side
    598,921.70x = 386,381,128,531.52
  5. Step 5: Solve for x
    x = 386,381,128,531.52/598,921.70
  6. Step 6: Final answer
    x = 645,127.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.