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Finding the Fourth Proportional to 293,453.20, 439,985.40 and 106,440.40

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Solution

The fourth proportional to 293,453.20, 439,985.40 and 106,440.40 is: 159,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,453.20 : 439,985.40 = 106,440.40 : x
  2. Step 2: Convert to fraction form
    293,453.20/439,985.40 = 106,440.40/x
  3. Step 3: Cross multiply
    293,453.20x = 439,985.40 × 106,440.40
  4. Step 4: Simplify right side
    293,453.20x = 46,832,221,970.16
  5. Step 5: Solve for x
    x = 46,832,221,970.16/293,453.20
  6. Step 6: Final answer
    x = 159,590.09

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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.