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Finding the Fourth Proportional to 657,904.40, 986,856.60 and 237,125.60

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Solution

The fourth proportional to 657,904.40, 986,856.60 and 237,125.60 is: 355,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,904.40 : 986,856.60 = 237,125.60 : x
  2. Step 2: Convert to fraction form
    657,904.40/986,856.60 = 237,125.60/x
  3. Step 3: Cross multiply
    657,904.40x = 986,856.60 × 237,125.60
  4. Step 4: Simplify right side
    657,904.40x = 234,008,963,388.96
  5. Step 5: Solve for x
    x = 234,008,963,388.96/657,904.40
  6. Step 6: Final answer
    x = 355,688.40

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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.