Home / 353,521.28-487,869.62-192,386.72

Finding the Fourth Proportional to 353,521.28, 487,869.62 and 192,386.72

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Solution

The fourth proportional to 353,521.28, 487,869.62 and 192,386.72 is: 265,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.28 : 487,869.62 = 192,386.72 : x
  2. Step 2: Convert to fraction form
    353,521.28/487,869.62 = 192,386.72/x
  3. Step 3: Cross multiply
    353,521.28x = 487,869.62 × 192,386.72
  4. Step 4: Simplify right side
    353,521.28x = 93,859,632,578.16
  5. Step 5: Solve for x
    x = 93,859,632,578.16/353,521.28
  6. Step 6: Final answer
    x = 265,499.25

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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.