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Finding the Fourth Proportional to 575,889.57, 864,584.42 and 387,195.21

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Solution

The fourth proportional to 575,889.57, 864,584.42 and 387,195.21 is: 581,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,889.57 : 864,584.42 = 387,195.21 : x
  2. Step 2: Convert to fraction form
    575,889.57/864,584.42 = 387,195.21/x
  3. Step 3: Cross multiply
    575,889.57x = 864,584.42 × 387,195.21
  4. Step 4: Simplify right side
    575,889.57x = 334,762,944,128.65
  5. Step 5: Solve for x
    x = 334,762,944,128.65/575,889.57
  6. Step 6: Final answer
    x = 581,297.11

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1.5x scale

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.