Home / 657,945.20-985,605.60-377,134.40

Finding the Fourth Proportional to 657,945.20, 985,605.60 and 377,134.40

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Solution

The fourth proportional to 657,945.20, 985,605.60 and 377,134.40 is: 564,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,945.20 : 985,605.60 = 377,134.40 : x
  2. Step 2: Convert to fraction form
    657,945.20/985,605.60 = 377,134.40/x
  3. Step 3: Cross multiply
    657,945.20x = 985,605.60 × 377,134.40
  4. Step 4: Simplify right side
    657,945.20x = 371,705,776,592.64
  5. Step 5: Solve for x
    x = 371,705,776,592.64/657,945.20
  6. Step 6: Final answer
    x = 564,949.45

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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.