Home / 657,815.56-986,550.54-283,755.40

Finding the Fourth Proportional to 657,815.56, 986,550.54 and 283,755.40

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Solution

The fourth proportional to 657,815.56, 986,550.54 and 283,755.40 is: 425,558.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,815.56 : 986,550.54 = 283,755.40 : x
  2. Step 2: Convert to fraction form
    657,815.56/986,550.54 = 283,755.40/x
  3. Step 3: Cross multiply
    657,815.56x = 986,550.54 × 283,755.40
  4. Step 4: Simplify right side
    657,815.56x = 279,939,043,097.92
  5. Step 5: Solve for x
    x = 279,939,043,097.92/657,815.56
  6. Step 6: Final answer
    x = 425,558.56

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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.