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Finding the Fourth Proportional to 891,175.84, 1,229,499.54 and 585,416.88

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Solution

The fourth proportional to 891,175.84, 1,229,499.54 and 585,416.88 is: 807,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,175.84 : 1,229,499.54 = 585,416.88 : x
  2. Step 2: Convert to fraction form
    891,175.84/1,229,499.54 = 585,416.88/x
  3. Step 3: Cross multiply
    891,175.84x = 1,229,499.54 × 585,416.88
  4. Step 4: Simplify right side
    891,175.84x = 719,769,784,668.24
  5. Step 5: Solve for x
    x = 719,769,784,668.24/891,175.84
  6. Step 6: Final answer
    x = 807,663.04

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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.