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Finding the Fourth Proportional to 274,364.16, 378,637.26 and 153,498.24

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Solution

The fourth proportional to 274,364.16, 378,637.26 and 153,498.24 is: 211,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,364.16 : 378,637.26 = 153,498.24 : x
  2. Step 2: Convert to fraction form
    274,364.16/378,637.26 = 153,498.24/x
  3. Step 3: Cross multiply
    274,364.16x = 378,637.26 × 153,498.24
  4. Step 4: Simplify right side
    274,364.16x = 58,120,153,008.42
  5. Step 5: Solve for x
    x = 58,120,153,008.42/274,364.16
  6. Step 6: Final answer
    x = 211,835.81

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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.