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Finding the Fourth Proportional to 572,651.32, 858,328.86 and 291,574.84

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Solution

The fourth proportional to 572,651.32, 858,328.86 and 291,574.84 is: 437,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,651.32 : 858,328.86 = 291,574.84 : x
  2. Step 2: Convert to fraction form
    572,651.32/858,328.86 = 291,574.84/x
  3. Step 3: Cross multiply
    572,651.32x = 858,328.86 × 291,574.84
  4. Step 4: Simplify right side
    572,651.32x = 250,267,100,021.88
  5. Step 5: Solve for x
    x = 250,267,100,021.88/572,651.32
  6. Step 6: Final answer
    x = 437,032.26

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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.