Home / 579,701.40-868,476.90-329,640.60

Finding the Fourth Proportional to 579,701.40, 868,476.90 and 329,640.60

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Solution

The fourth proportional to 579,701.40, 868,476.90 and 329,640.60 is: 493,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,701.40 : 868,476.90 = 329,640.60 : x
  2. Step 2: Convert to fraction form
    579,701.40/868,476.90 = 329,640.60/x
  3. Step 3: Cross multiply
    579,701.40x = 868,476.90 × 329,640.60
  4. Step 4: Simplify right side
    579,701.40x = 286,285,246,402.14
  5. Step 5: Solve for x
    x = 286,285,246,402.14/579,701.40
  6. Step 6: Final answer
    x = 493,849.50

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Double scale
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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.