Home / 657,025.40-985,538.10-540,385.40

Finding the Fourth Proportional to 657,025.40, 985,538.10 and 540,385.40

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Solution

The fourth proportional to 657,025.40, 985,538.10 and 540,385.40 is: 810,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,025.40 : 985,538.10 = 540,385.40 : x
  2. Step 2: Convert to fraction form
    657,025.40/985,538.10 = 540,385.40/x
  3. Step 3: Cross multiply
    657,025.40x = 985,538.10 × 540,385.40
  4. Step 4: Simplify right side
    657,025.40x = 532,570,400,383.74
  5. Step 5: Solve for x
    x = 532,570,400,383.74/657,025.40
  6. Step 6: Final answer
    x = 810,578.10

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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.