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Finding the Fourth Proportional to 615,682.32, 923,615.80 and 216,252.68

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Solution

The fourth proportional to 615,682.32, 923,615.80 and 216,252.68 is: 324,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,682.32 : 923,615.80 = 216,252.68 : x
  2. Step 2: Convert to fraction form
    615,682.32/923,615.80 = 216,252.68/x
  3. Step 3: Cross multiply
    615,682.32x = 923,615.80 × 216,252.68
  4. Step 4: Simplify right side
    615,682.32x = 199,734,392,040.34
  5. Step 5: Solve for x
    x = 199,734,392,040.34/615,682.32
  6. Step 6: Final answer
    x = 324,411.45

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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.