Home / 639,190.43-959,151.98-260,041.18

Finding the Fourth Proportional to 639,190.43, 959,151.98 and 260,041.18

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Solution

The fourth proportional to 639,190.43, 959,151.98 and 260,041.18 is: 390,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,190.43 : 959,151.98 = 260,041.18 : x
  2. Step 2: Convert to fraction form
    639,190.43/959,151.98 = 260,041.18/x
  3. Step 3: Cross multiply
    639,190.43x = 959,151.98 × 260,041.18
  4. Step 4: Simplify right side
    639,190.43x = 249,419,008,980.45
  5. Step 5: Solve for x
    x = 249,419,008,980.45/639,190.43
  6. Step 6: Final answer
    x = 390,210.80

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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.