Home / 651,680.20-899,343.30-379,923.04

Finding the Fourth Proportional to 651,680.20, 899,343.30 and 379,923.04

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Solution

The fourth proportional to 651,680.20, 899,343.30 and 379,923.04 is: 524,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,680.20 : 899,343.30 = 379,923.04 : x
  2. Step 2: Convert to fraction form
    651,680.20/899,343.30 = 379,923.04/x
  3. Step 3: Cross multiply
    651,680.20x = 899,343.30 × 379,923.04
  4. Step 4: Simplify right side
    651,680.20x = 341,681,240,539.63
  5. Step 5: Solve for x
    x = 341,681,240,539.63/651,680.20
  6. Step 6: Final answer
    x = 524,308.15

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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.