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Finding the Fourth Proportional to 384,519.40, 576,779.10 and 226,925.80

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Solution

The fourth proportional to 384,519.40, 576,779.10 and 226,925.80 is: 340,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,519.40 : 576,779.10 = 226,925.80 : x
  2. Step 2: Convert to fraction form
    384,519.40/576,779.10 = 226,925.80/x
  3. Step 3: Cross multiply
    384,519.40x = 576,779.10 × 226,925.80
  4. Step 4: Simplify right side
    384,519.40x = 130,886,058,690.78
  5. Step 5: Solve for x
    x = 130,886,058,690.78/384,519.40
  6. Step 6: Final answer
    x = 340,388.70

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1.5x scale

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.