Home / 651,040.20-975,977.10-426,508.20

Finding the Fourth Proportional to 651,040.20, 975,977.10 and 426,508.20

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Solution

The fourth proportional to 651,040.20, 975,977.10 and 426,508.20 is: 639,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,040.20 : 975,977.10 = 426,508.20 : x
  2. Step 2: Convert to fraction form
    651,040.20/975,977.10 = 426,508.20/x
  3. Step 3: Cross multiply
    651,040.20x = 975,977.10 × 426,508.20
  4. Step 4: Simplify right side
    651,040.20x = 416,262,236,162.22
  5. Step 5: Solve for x
    x = 416,262,236,162.22/651,040.20
  6. Step 6: Final answer
    x = 639,380.24

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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.