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Finding the Fourth Proportional to 535,279.34, 803,360.72 and 269,115.50

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Solution

The fourth proportional to 535,279.34, 803,360.72 and 269,115.50 is: 403,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,279.34 : 803,360.72 = 269,115.50 : x
  2. Step 2: Convert to fraction form
    535,279.34/803,360.72 = 269,115.50/x
  3. Step 3: Cross multiply
    535,279.34x = 803,360.72 × 269,115.50
  4. Step 4: Simplify right side
    535,279.34x = 216,196,821,843.16
  5. Step 5: Solve for x
    x = 216,196,821,843.16/535,279.34
  6. Step 6: Final answer
    x = 403,895.32

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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.