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Finding the Fourth Proportional to 467,670.72, 645,228 and 266,324.16

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Solution

The fourth proportional to 467,670.72, 645,228 and 266,324.16 is: 367,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,670.72 : 645,228 = 266,324.16 : x
  2. Step 2: Convert to fraction form
    467,670.72/645,228 = 266,324.16/x
  3. Step 3: Cross multiply
    467,670.72x = 645,228 × 266,324.16
  4. Step 4: Simplify right side
    467,670.72x = 171,839,805,108.48
  5. Step 5: Solve for x
    x = 171,839,805,108.48/467,670.72
  6. Step 6: Final answer
    x = 367,437.60

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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.