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Finding the Fourth Proportional to 310,613.03, 427,588.17 and 229,888.43

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Solution

The fourth proportional to 310,613.03, 427,588.17 and 229,888.43 is: 316,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,613.03 : 427,588.17 = 229,888.43 : x
  2. Step 2: Convert to fraction form
    310,613.03/427,588.17 = 229,888.43/x
  3. Step 3: Cross multiply
    310,613.03x = 427,588.17 × 229,888.43
  4. Step 4: Simplify right side
    310,613.03x = 98,297,573,087.87
  5. Step 5: Solve for x
    x = 98,297,573,087.87/310,613.03
  6. Step 6: Final answer
    x = 316,463.13

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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.