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Finding the Fourth Proportional to 483,312.16, 667,058.13 and 279,334.93

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Solution

The fourth proportional to 483,312.16, 667,058.13 and 279,334.93 is: 385,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,312.16 : 667,058.13 = 279,334.93 : x
  2. Step 2: Convert to fraction form
    483,312.16/667,058.13 = 279,334.93/x
  3. Step 3: Cross multiply
    483,312.16x = 667,058.13 × 279,334.93
  4. Step 4: Simplify right side
    483,312.16x = 186,332,636,049.48
  5. Step 5: Solve for x
    x = 186,332,636,049.48/483,312.16
  6. Step 6: Final answer
    x = 385,532.69

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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.