Home / 456,799.56-629,966.88-392,248.50

Finding the Fourth Proportional to 456,799.56, 629,966.88 and 392,248.50

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Solution

The fourth proportional to 456,799.56, 629,966.88 and 392,248.50 is: 540,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,799.56 : 629,966.88 = 392,248.50 : x
  2. Step 2: Convert to fraction form
    456,799.56/629,966.88 = 392,248.50/x
  3. Step 3: Cross multiply
    456,799.56x = 629,966.88 × 392,248.50
  4. Step 4: Simplify right side
    456,799.56x = 247,103,563,729.68
  5. Step 5: Solve for x
    x = 247,103,563,729.68/456,799.56
  6. Step 6: Final answer
    x = 540,945.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.