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Finding the Fourth Proportional to 438,134.32, 604,077.51 and 365,641.48

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Solution

The fourth proportional to 438,134.32, 604,077.51 and 365,641.48 is: 504,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,134.32 : 604,077.51 = 365,641.48 : x
  2. Step 2: Convert to fraction form
    438,134.32/604,077.51 = 365,641.48/x
  3. Step 3: Cross multiply
    438,134.32x = 604,077.51 × 365,641.48
  4. Step 4: Simplify right side
    438,134.32x = 220,875,794,791.12
  5. Step 5: Solve for x
    x = 220,875,794,791.12/438,134.32
  6. Step 6: Final answer
    x = 504,128.04

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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.