Home / 657,077.40-985,616.10-433,128.60

Finding the Fourth Proportional to 657,077.40, 985,616.10 and 433,128.60

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Solution

The fourth proportional to 657,077.40, 985,616.10 and 433,128.60 is: 649,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,077.40 : 985,616.10 = 433,128.60 : x
  2. Step 2: Convert to fraction form
    657,077.40/985,616.10 = 433,128.60/x
  3. Step 3: Cross multiply
    657,077.40x = 985,616.10 × 433,128.60
  4. Step 4: Simplify right side
    657,077.40x = 426,898,521,530.46
  5. Step 5: Solve for x
    x = 426,898,521,530.46/657,077.40
  6. Step 6: Final answer
    x = 649,692.90

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Double scale
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Similar ratio
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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.