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Finding the Fourth Proportional to 618,209.37, 853,421.11 and 414,393.42

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Solution

The fourth proportional to 618,209.37, 853,421.11 and 414,393.42 is: 572,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,209.37 : 853,421.11 = 414,393.42 : x
  2. Step 2: Convert to fraction form
    618,209.37/853,421.11 = 414,393.42/x
  3. Step 3: Cross multiply
    618,209.37x = 853,421.11 × 414,393.42
  4. Step 4: Simplify right side
    618,209.37x = 353,652,092,473.10
  5. Step 5: Solve for x
    x = 353,652,092,473.10/618,209.37
  6. Step 6: Final answer
    x = 572,058.77

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1.5x scale

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.