Home / 290,007.60-400,184.28-176,807.76

Finding the Fourth Proportional to 290,007.60, 400,184.28 and 176,807.76

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Solution

The fourth proportional to 290,007.60, 400,184.28 and 176,807.76 is: 243,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,007.60 : 400,184.28 = 176,807.76 : x
  2. Step 2: Convert to fraction form
    290,007.60/400,184.28 = 176,807.76/x
  3. Step 3: Cross multiply
    290,007.60x = 400,184.28 × 176,807.76
  4. Step 4: Simplify right side
    290,007.60x = 70,755,686,134.01
  5. Step 5: Solve for x
    x = 70,755,686,134.01/290,007.60
  6. Step 6: Final answer
    x = 243,978.73

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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.