Home / 657,123.40-985,612.20-183,856.60

Finding the Fourth Proportional to 657,123.40, 985,612.20 and 183,856.60

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Solution

The fourth proportional to 657,123.40, 985,612.20 and 183,856.60 is: 275,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,123.40 : 985,612.20 = 183,856.60 : x
  2. Step 2: Convert to fraction form
    657,123.40/985,612.20 = 183,856.60/x
  3. Step 3: Cross multiply
    657,123.40x = 985,612.20 × 183,856.60
  4. Step 4: Simplify right side
    657,123.40x = 181,211,308,010.52
  5. Step 5: Solve for x
    x = 181,211,308,010.52/657,123.40
  6. Step 6: Final answer
    x = 275,764.50

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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.