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Finding the Fourth Proportional to 427,816.49, 590,393.72 and 234,220.93

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Solution

The fourth proportional to 427,816.49, 590,393.72 and 234,220.93 is: 323,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,816.49 : 590,393.72 = 234,220.93 : x
  2. Step 2: Convert to fraction form
    427,816.49/590,393.72 = 234,220.93/x
  3. Step 3: Cross multiply
    427,816.49x = 590,393.72 × 234,220.93
  4. Step 4: Simplify right side
    427,816.49x = 138,282,566,170.61
  5. Step 5: Solve for x
    x = 138,282,566,170.61/427,816.49
  6. Step 6: Final answer
    x = 323,228.70

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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.