Home / 641,800.34-962,848.16-215,392.76

Finding the Fourth Proportional to 641,800.34, 962,848.16 and 215,392.76

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Solution

The fourth proportional to 641,800.34, 962,848.16 and 215,392.76 is: 323,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,800.34 : 962,848.16 = 215,392.76 : x
  2. Step 2: Convert to fraction form
    641,800.34/962,848.16 = 215,392.76/x
  3. Step 3: Cross multiply
    641,800.34x = 962,848.16 × 215,392.76
  4. Step 4: Simplify right side
    641,800.34x = 207,390,522,643.32
  5. Step 5: Solve for x
    x = 207,390,522,643.32/641,800.34
  6. Step 6: Final answer
    x = 323,138.69

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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.