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Finding the Fourth Proportional to 563,674.50, 778,279.05 and 362,820.42

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Solution

The fourth proportional to 563,674.50, 778,279.05 and 362,820.42 is: 500,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,674.50 : 778,279.05 = 362,820.42 : x
  2. Step 2: Convert to fraction form
    563,674.50/778,279.05 = 362,820.42/x
  3. Step 3: Cross multiply
    563,674.50x = 778,279.05 × 362,820.42
  4. Step 4: Simplify right side
    563,674.50x = 282,375,531,798.20
  5. Step 5: Solve for x
    x = 282,375,531,798.20/563,674.50
  6. Step 6: Final answer
    x = 500,954.95

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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.