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Finding the Fourth Proportional to 713,668.32, 1,070,502.84 and 215,032.32

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Solution

The fourth proportional to 713,668.32, 1,070,502.84 and 215,032.32 is: 322,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,668.32 : 1,070,502.84 = 215,032.32 : x
  2. Step 2: Convert to fraction form
    713,668.32/1,070,502.84 = 215,032.32/x
  3. Step 3: Cross multiply
    713,668.32x = 1,070,502.84 × 215,032.32
  4. Step 4: Simplify right side
    713,668.32x = 230,192,709,251.79
  5. Step 5: Solve for x
    x = 230,192,709,251.79/713,668.32
  6. Step 6: Final answer
    x = 322,548.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.