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Finding the Fourth Proportional to 578,088.40, 867,132.60 and 157,363.60

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Solution

The fourth proportional to 578,088.40, 867,132.60 and 157,363.60 is: 236,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,088.40 : 867,132.60 = 157,363.60 : x
  2. Step 2: Convert to fraction form
    578,088.40/867,132.60 = 157,363.60/x
  3. Step 3: Cross multiply
    578,088.40x = 867,132.60 × 157,363.60
  4. Step 4: Simplify right side
    578,088.40x = 136,455,107,613.36
  5. Step 5: Solve for x
    x = 136,455,107,613.36/578,088.40
  6. Step 6: Final answer
    x = 236,045.40

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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.