Home / 467,280.20-644,847.28-252,420.28

Finding the Fourth Proportional to 467,280.20, 644,847.28 and 252,420.28

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Solution

The fourth proportional to 467,280.20, 644,847.28 and 252,420.28 is: 348,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,280.20 : 644,847.28 = 252,420.28 : x
  2. Step 2: Convert to fraction form
    467,280.20/644,847.28 = 252,420.28/x
  3. Step 3: Cross multiply
    467,280.20x = 644,847.28 × 252,420.28
  4. Step 4: Simplify right side
    467,280.20x = 162,772,528,731.67
  5. Step 5: Solve for x
    x = 162,772,528,731.67/467,280.20
  6. Step 6: Final answer
    x = 348,340.31

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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.