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Finding the Fourth Proportional to 572,258.80, 858,388.20 and 348,058.90

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Solution

The fourth proportional to 572,258.80, 858,388.20 and 348,058.90 is: 522,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,258.80 : 858,388.20 = 348,058.90 : x
  2. Step 2: Convert to fraction form
    572,258.80/858,388.20 = 348,058.90/x
  3. Step 3: Cross multiply
    572,258.80x = 858,388.20 × 348,058.90
  4. Step 4: Simplify right side
    572,258.80x = 298,769,652,664.98
  5. Step 5: Solve for x
    x = 298,769,652,664.98/572,258.80
  6. Step 6: Final answer
    x = 522,088.35

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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.