Home / 639,200.12-959,166.51-260,050.87

Finding the Fourth Proportional to 639,200.12, 959,166.51 and 260,050.87

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Solution

The fourth proportional to 639,200.12, 959,166.51 and 260,050.87 is: 390,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,200.12 : 959,166.51 = 260,050.87 : x
  2. Step 2: Convert to fraction form
    639,200.12/959,166.51 = 260,050.87/x
  3. Step 3: Cross multiply
    639,200.12x = 959,166.51 × 260,050.87
  4. Step 4: Simplify right side
    639,200.12x = 249,432,080,604.53
  5. Step 5: Solve for x
    x = 249,432,080,604.53/639,200.12
  6. Step 6: Final answer
    x = 390,225.33

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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.