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Finding the Fourth Proportional to 657,103.40, 985,655.10 and 590,618.60

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Solution

The fourth proportional to 657,103.40, 985,655.10 and 590,618.60 is: 885,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,103.40 : 985,655.10 = 590,618.60 : x
  2. Step 2: Convert to fraction form
    657,103.40/985,655.10 = 590,618.60/x
  3. Step 3: Cross multiply
    657,103.40x = 985,655.10 × 590,618.60
  4. Step 4: Simplify right side
    657,103.40x = 582,146,235,244.86
  5. Step 5: Solve for x
    x = 582,146,235,244.86/657,103.40
  6. Step 6: Final answer
    x = 885,927.90

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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.