Home / 876,073.17-1,209,239.54-513,575.49

Finding the Fourth Proportional to 876,073.17, 1,209,239.54 and 513,575.49

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Solution

The fourth proportional to 876,073.17, 1,209,239.54 and 513,575.49 is: 708,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,073.17 : 1,209,239.54 = 513,575.49 : x
  2. Step 2: Convert to fraction form
    876,073.17/1,209,239.54 = 513,575.49/x
  3. Step 3: Cross multiply
    876,073.17x = 1,209,239.54 × 513,575.49
  4. Step 4: Simplify right side
    876,073.17x = 621,035,786,715.00
  5. Step 5: Solve for x
    x = 621,035,786,715.00/876,073.17
  6. Step 6: Final answer
    x = 708,885.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.