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Finding the Fourth Proportional to 575,808.57, 794,616.90 and 321,176.16

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Solution

The fourth proportional to 575,808.57, 794,616.90 and 321,176.16 is: 443,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,808.57 : 794,616.90 = 321,176.16 : x
  2. Step 2: Convert to fraction form
    575,808.57/794,616.90 = 321,176.16/x
  3. Step 3: Cross multiply
    575,808.57x = 794,616.90 × 321,176.16
  4. Step 4: Simplify right side
    575,808.57x = 255,212,004,613.10
  5. Step 5: Solve for x
    x = 255,212,004,613.10/575,808.57
  6. Step 6: Final answer
    x = 443,223.70

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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.