Home / 598,961.40-898,442.10-319,025.40

Finding the Fourth Proportional to 598,961.40, 898,442.10 and 319,025.40

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Solution

The fourth proportional to 598,961.40, 898,442.10 and 319,025.40 is: 478,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,961.40 : 898,442.10 = 319,025.40 : x
  2. Step 2: Convert to fraction form
    598,961.40/898,442.10 = 319,025.40/x
  3. Step 3: Cross multiply
    598,961.40x = 898,442.10 × 319,025.40
  4. Step 4: Simplify right side
    598,961.40x = 286,625,850,329.34
  5. Step 5: Solve for x
    x = 286,625,850,329.34/598,961.40
  6. Step 6: Final answer
    x = 478,538.10

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Double scale
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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.