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Finding the Fourth Proportional to 348,058.80, 522,088.20 and 343,393.20

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Solution

The fourth proportional to 348,058.80, 522,088.20 and 343,393.20 is: 515,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,058.80 : 522,088.20 = 343,393.20 : x
  2. Step 2: Convert to fraction form
    348,058.80/522,088.20 = 343,393.20/x
  3. Step 3: Cross multiply
    348,058.80x = 522,088.20 × 343,393.20
  4. Step 4: Simplify right side
    348,058.80x = 179,281,537,680.24
  5. Step 5: Solve for x
    x = 179,281,537,680.24/348,058.80
  6. Step 6: Final answer
    x = 515,089.80

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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.