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Finding the Fourth Proportional to 530,328.74, 732,103.89 and 339,452.78

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Solution

The fourth proportional to 530,328.74, 732,103.89 and 339,452.78 is: 468,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,328.74 : 732,103.89 = 339,452.78 : x
  2. Step 2: Convert to fraction form
    530,328.74/732,103.89 = 339,452.78/x
  3. Step 3: Cross multiply
    530,328.74x = 732,103.89 × 339,452.78
  4. Step 4: Simplify right side
    530,328.74x = 248,514,700,709.31
  5. Step 5: Solve for x
    x = 248,514,700,709.31/530,328.74
  6. Step 6: Final answer
    x = 468,605.00

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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.