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Finding the Fourth Proportional to 353,023.65, 487,172.75 and 191,878.74

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Solution

The fourth proportional to 353,023.65, 487,172.75 and 191,878.74 is: 264,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,023.65 : 487,172.75 = 191,878.74 : x
  2. Step 2: Convert to fraction form
    353,023.65/487,172.75 = 191,878.74/x
  3. Step 3: Cross multiply
    353,023.65x = 487,172.75 × 191,878.74
  4. Step 4: Simplify right side
    353,023.65x = 93,478,092,472.94
  5. Step 5: Solve for x
    x = 93,478,092,472.94/353,023.65
  6. Step 6: Final answer
    x = 264,792.72

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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.