Home / 681,200.28-1,021,792.05-207,886.91

Finding the Fourth Proportional to 681,200.28, 1,021,792.05 and 207,886.91

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Solution

The fourth proportional to 681,200.28, 1,021,792.05 and 207,886.91 is: 311,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,200.28 : 1,021,792.05 = 207,886.91 : x
  2. Step 2: Convert to fraction form
    681,200.28/1,021,792.05 = 207,886.91/x
  3. Step 3: Cross multiply
    681,200.28x = 1,021,792.05 × 207,886.91
  4. Step 4: Simplify right side
    681,200.28x = 212,417,186,828.11
  5. Step 5: Solve for x
    x = 212,417,186,828.11/681,200.28
  6. Step 6: Final answer
    x = 311,827.80

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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.