Home / 813,753.19-1,123,270.02-555,445.25

Finding the Fourth Proportional to 813,753.19, 1,123,270.02 and 555,445.25

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Solution

The fourth proportional to 813,753.19, 1,123,270.02 and 555,445.25 is: 766,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,753.19 : 1,123,270.02 = 555,445.25 : x
  2. Step 2: Convert to fraction form
    813,753.19/1,123,270.02 = 555,445.25/x
  3. Step 3: Cross multiply
    813,753.19x = 1,123,270.02 × 555,445.25
  4. Step 4: Simplify right side
    813,753.19x = 623,914,997,076.41
  5. Step 5: Solve for x
    x = 623,914,997,076.41/813,753.19
  6. Step 6: Final answer
    x = 766,712.81

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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.