Home / 389,221.54-536,814.72-268,335.10

Finding the Fourth Proportional to 389,221.54, 536,814.72 and 268,335.10

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Solution

The fourth proportional to 389,221.54, 536,814.72 and 268,335.10 is: 370,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,221.54 : 536,814.72 = 268,335.10 : x
  2. Step 2: Convert to fraction form
    389,221.54/536,814.72 = 268,335.10/x
  3. Step 3: Cross multiply
    389,221.54x = 536,814.72 × 268,335.10
  4. Step 4: Simplify right side
    389,221.54x = 144,046,231,572.67
  5. Step 5: Solve for x
    x = 144,046,231,572.67/389,221.54
  6. Step 6: Final answer
    x = 370,088.03

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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.