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Finding the Fourth Proportional to 353,189.19, 487,397.54 and 192,044.28

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Solution

The fourth proportional to 353,189.19, 487,397.54 and 192,044.28 is: 265,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,189.19 : 487,397.54 = 192,044.28 : x
  2. Step 2: Convert to fraction form
    353,189.19/487,397.54 = 192,044.28/x
  3. Step 3: Cross multiply
    353,189.19x = 487,397.54 × 192,044.28
  4. Step 4: Simplify right side
    353,189.19x = 93,601,908,682.85
  5. Step 5: Solve for x
    x = 93,601,908,682.85/353,189.19
  6. Step 6: Final answer
    x = 265,019.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.