Home / 651,113.20-975,357.60-438,536.80

Finding the Fourth Proportional to 651,113.20, 975,357.60 and 438,536.80

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Solution

The fourth proportional to 651,113.20, 975,357.60 and 438,536.80 is: 656,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,113.20 : 975,357.60 = 438,536.80 : x
  2. Step 2: Convert to fraction form
    651,113.20/975,357.60 = 438,536.80/x
  3. Step 3: Cross multiply
    651,113.20x = 975,357.60 × 438,536.80
  4. Step 4: Simplify right side
    651,113.20x = 427,730,200,759.68
  5. Step 5: Solve for x
    x = 427,730,200,759.68/651,113.20
  6. Step 6: Final answer
    x = 656,921.41

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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.