Home / 289,520.70-434,284.29-121,066.62

Finding the Fourth Proportional to 289,520.70, 434,284.29 and 121,066.62

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Solution

The fourth proportional to 289,520.70, 434,284.29 and 121,066.62 is: 181,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,520.70 : 434,284.29 = 121,066.62 : x
  2. Step 2: Convert to fraction form
    289,520.70/434,284.29 = 121,066.62/x
  3. Step 3: Cross multiply
    289,520.70x = 434,284.29 × 121,066.62
  4. Step 4: Simplify right side
    289,520.70x = 52,577,331,109.40
  5. Step 5: Solve for x
    x = 52,577,331,109.40/289,520.70
  6. Step 6: Final answer
    x = 181,601.28

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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.