Home / 923,108.60-1,272,000.30-681,008.60

Finding the Fourth Proportional to 923,108.60, 1,272,000.30 and 681,008.60

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Solution

The fourth proportional to 923,108.60, 1,272,000.30 and 681,008.60 is: 938,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,108.60 : 1,272,000.30 = 681,008.60 : x
  2. Step 2: Convert to fraction form
    923,108.60/1,272,000.30 = 681,008.60/x
  3. Step 3: Cross multiply
    923,108.60x = 1,272,000.30 × 681,008.60
  4. Step 4: Simplify right side
    923,108.60x = 866,243,143,502.58
  5. Step 5: Solve for x
    x = 866,243,143,502.58/923,108.60
  6. Step 6: Final answer
    x = 938,397.87

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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.