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Finding the Fourth Proportional to 352,058.80, 528,088.20 and 313,351.60

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Solution

The fourth proportional to 352,058.80, 528,088.20 and 313,351.60 is: 470,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,058.80 : 528,088.20 = 313,351.60 : x
  2. Step 2: Convert to fraction form
    352,058.80/528,088.20 = 313,351.60/x
  3. Step 3: Cross multiply
    352,058.80x = 528,088.20 × 313,351.60
  4. Step 4: Simplify right side
    352,058.80x = 165,477,282,411.12
  5. Step 5: Solve for x
    x = 165,477,282,411.12/352,058.80
  6. Step 6: Final answer
    x = 470,027.40

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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.