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Finding the Fourth Proportional to 657,098.40, 985,647.60 and 236,319.60

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Solution

The fourth proportional to 657,098.40, 985,647.60 and 236,319.60 is: 354,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,098.40 : 985,647.60 = 236,319.60 : x
  2. Step 2: Convert to fraction form
    657,098.40/985,647.60 = 236,319.60/x
  3. Step 3: Cross multiply
    657,098.40x = 985,647.60 × 236,319.60
  4. Step 4: Simplify right side
    657,098.40x = 232,927,846,572.96
  5. Step 5: Solve for x
    x = 232,927,846,572.96/657,098.40
  6. Step 6: Final answer
    x = 354,479.40

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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.