Home / 623,422.20-935,272.02-290,816.76

Finding the Fourth Proportional to 623,422.20, 935,272.02 and 290,816.76

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Solution

The fourth proportional to 623,422.20, 935,272.02 and 290,816.76 is: 436,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,422.20 : 935,272.02 = 290,816.76 : x
  2. Step 2: Convert to fraction form
    623,422.20/935,272.02 = 290,816.76/x
  3. Step 3: Cross multiply
    623,422.20x = 935,272.02 × 290,816.76
  4. Step 4: Simplify right side
    623,422.20x = 271,992,778,575.06
  5. Step 5: Solve for x
    x = 271,992,778,575.06/623,422.20
  6. Step 6: Final answer
    x = 436,289.85

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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.