Home / 910,869.60-1,366,304.40-378,116.40

Finding the Fourth Proportional to 910,869.60, 1,366,304.40 and 378,116.40

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Solution

The fourth proportional to 910,869.60, 1,366,304.40 and 378,116.40 is: 567,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,869.60 : 1,366,304.40 = 378,116.40 : x
  2. Step 2: Convert to fraction form
    910,869.60/1,366,304.40 = 378,116.40/x
  3. Step 3: Cross multiply
    910,869.60x = 1,366,304.40 × 378,116.40
  4. Step 4: Simplify right side
    910,869.60x = 516,622,101,032.16
  5. Step 5: Solve for x
    x = 516,622,101,032.16/910,869.60
  6. Step 6: Final answer
    x = 567,174.60

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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.