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Finding the Fourth Proportional to 563,911.70, 778,500.54 and 435,514.72

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Solution

The fourth proportional to 563,911.70, 778,500.54 and 435,514.72 is: 601,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,911.70 : 778,500.54 = 435,514.72 : x
  2. Step 2: Convert to fraction form
    563,911.70/778,500.54 = 435,514.72/x
  3. Step 3: Cross multiply
    563,911.70x = 778,500.54 × 435,514.72
  4. Step 4: Simplify right side
    563,911.70x = 339,048,446,516.73
  5. Step 5: Solve for x
    x = 339,048,446,516.73/563,911.70
  6. Step 6: Final answer
    x = 601,243.86

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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.