Home / 657,099.40-985,649.10-433,150.60

Finding the Fourth Proportional to 657,099.40, 985,649.10 and 433,150.60

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Solution

The fourth proportional to 657,099.40, 985,649.10 and 433,150.60 is: 649,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,099.40 : 985,649.10 = 433,150.60 : x
  2. Step 2: Convert to fraction form
    657,099.40/985,649.10 = 433,150.60/x
  3. Step 3: Cross multiply
    657,099.40x = 985,649.10 × 433,150.60
  4. Step 4: Simplify right side
    657,099.40x = 426,934,499,054.46
  5. Step 5: Solve for x
    x = 426,934,499,054.46/657,099.40
  6. Step 6: Final answer
    x = 649,725.90

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Double scale
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Similar ratio
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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.