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Finding the Fourth Proportional to 572,399.19, 858,303.54 and 302,672.97

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Solution

The fourth proportional to 572,399.19, 858,303.54 and 302,672.97 is: 453,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,399.19 : 858,303.54 = 302,672.97 : x
  2. Step 2: Convert to fraction form
    572,399.19/858,303.54 = 302,672.97/x
  3. Step 3: Cross multiply
    572,399.19x = 858,303.54 × 302,672.97
  4. Step 4: Simplify right side
    572,399.19x = 259,785,281,613.31
  5. Step 5: Solve for x
    x = 259,785,281,613.31/572,399.19
  6. Step 6: Final answer
    x = 453,853.34

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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.