Home / 650,738.40-976,107.60-572,006.40

Finding the Fourth Proportional to 650,738.40, 976,107.60 and 572,006.40

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Solution

The fourth proportional to 650,738.40, 976,107.60 and 572,006.40 is: 858,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,738.40 : 976,107.60 = 572,006.40 : x
  2. Step 2: Convert to fraction form
    650,738.40/976,107.60 = 572,006.40/x
  3. Step 3: Cross multiply
    650,738.40x = 976,107.60 × 572,006.40
  4. Step 4: Simplify right side
    650,738.40x = 558,339,794,288.64
  5. Step 5: Solve for x
    x = 558,339,794,288.64/650,738.40
  6. Step 6: Final answer
    x = 858,009.60

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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.