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Finding the Fourth Proportional to 219,909.60, 329,864.40 and 185,349.60

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Solution

The fourth proportional to 219,909.60, 329,864.40 and 185,349.60 is: 278,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,909.60 : 329,864.40 = 185,349.60 : x
  2. Step 2: Convert to fraction form
    219,909.60/329,864.40 = 185,349.60/x
  3. Step 3: Cross multiply
    219,909.60x = 329,864.40 × 185,349.60
  4. Step 4: Simplify right side
    219,909.60x = 61,140,234,594.24
  5. Step 5: Solve for x
    x = 61,140,234,594.24/219,909.60
  6. Step 6: Final answer
    x = 278,024.40

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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.