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Finding the Fourth Proportional to 633,999.74, 875,009.34 and 392,360.24

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Solution

The fourth proportional to 633,999.74, 875,009.34 and 392,360.24 is: 541,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,999.74 : 875,009.34 = 392,360.24 : x
  2. Step 2: Convert to fraction form
    633,999.74/875,009.34 = 392,360.24/x
  3. Step 3: Cross multiply
    633,999.74x = 875,009.34 × 392,360.24
  4. Step 4: Simplify right side
    633,999.74x = 343,318,874,644.64
  5. Step 5: Solve for x
    x = 343,318,874,644.64/633,999.74
  6. Step 6: Final answer
    x = 541,512.64

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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.