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Finding the Fourth Proportional to 463,348.84, 639,232.32 and 291,211.29

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Solution

The fourth proportional to 463,348.84, 639,232.32 and 291,211.29 is: 401,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,348.84 : 639,232.32 = 291,211.29 : x
  2. Step 2: Convert to fraction form
    463,348.84/639,232.32 = 291,211.29/x
  3. Step 3: Cross multiply
    463,348.84x = 639,232.32 × 291,211.29
  4. Step 4: Simplify right side
    463,348.84x = 186,151,668,516.89
  5. Step 5: Solve for x
    x = 186,151,668,516.89/463,348.84
  6. Step 6: Final answer
    x = 401,752.75

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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.