Home / 898,279.40-1,347,419.10-543,985.40

Finding the Fourth Proportional to 898,279.40, 1,347,419.10 and 543,985.40

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Solution

The fourth proportional to 898,279.40, 1,347,419.10 and 543,985.40 is: 815,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,279.40 : 1,347,419.10 = 543,985.40 : x
  2. Step 2: Convert to fraction form
    898,279.40/1,347,419.10 = 543,985.40/x
  3. Step 3: Cross multiply
    898,279.40x = 1,347,419.10 × 543,985.40
  4. Step 4: Simplify right side
    898,279.40x = 732,976,318,081.14
  5. Step 5: Solve for x
    x = 732,976,318,081.14/898,279.40
  6. Step 6: Final answer
    x = 815,978.10

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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.