Home / 628,689.20-943,024.48-155,374.40

Finding the Fourth Proportional to 628,689.20, 943,024.48 and 155,374.40

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Solution

The fourth proportional to 628,689.20, 943,024.48 and 155,374.40 is: 233,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,689.20 : 943,024.48 = 155,374.40 : x
  2. Step 2: Convert to fraction form
    628,689.20/943,024.48 = 155,374.40/x
  3. Step 3: Cross multiply
    628,689.20x = 943,024.48 × 155,374.40
  4. Step 4: Simplify right side
    628,689.20x = 146,521,864,734.44
  5. Step 5: Solve for x
    x = 146,521,864,734.44/628,689.20
  6. Step 6: Final answer
    x = 233,059.30

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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.