Home / 289,304.22-434,025.09-120,730.89

Finding the Fourth Proportional to 289,304.22, 434,025.09 and 120,730.89

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Solution

The fourth proportional to 289,304.22, 434,025.09 and 120,730.89 is: 181,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,304.22 : 434,025.09 = 120,730.89 : x
  2. Step 2: Convert to fraction form
    289,304.22/434,025.09 = 120,730.89/x
  3. Step 3: Cross multiply
    289,304.22x = 434,025.09 × 120,730.89
  4. Step 4: Simplify right side
    289,304.22x = 52,400,235,398.03
  5. Step 5: Solve for x
    x = 52,400,235,398.03/289,304.22
  6. Step 6: Final answer
    x = 181,125.03

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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.