Home / 515,521.07-772,970.99-231,160.16

Finding the Fourth Proportional to 515,521.07, 772,970.99 and 231,160.16

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Solution

The fourth proportional to 515,521.07, 772,970.99 and 231,160.16 is: 346,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,521.07 : 772,970.99 = 231,160.16 : x
  2. Step 2: Convert to fraction form
    515,521.07/772,970.99 = 231,160.16/x
  3. Step 3: Cross multiply
    515,521.07x = 772,970.99 × 231,160.16
  4. Step 4: Simplify right side
    515,521.07x = 178,680,092,703.10
  5. Step 5: Solve for x
    x = 178,680,092,703.10/515,521.07
  6. Step 6: Final answer
    x = 346,600.95

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1.5x scale

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.