Home / 409,483.79-565,088.18-228,191.75

Finding the Fourth Proportional to 409,483.79, 565,088.18 and 228,191.75

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Solution

The fourth proportional to 409,483.79, 565,088.18 and 228,191.75 is: 314,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,483.79 : 565,088.18 = 228,191.75 : x
  2. Step 2: Convert to fraction form
    409,483.79/565,088.18 = 228,191.75/x
  3. Step 3: Cross multiply
    409,483.79x = 565,088.18 × 228,191.75
  4. Step 4: Simplify right side
    409,483.79x = 128,948,456,732.12
  5. Step 5: Solve for x
    x = 128,948,456,732.12/409,483.79
  6. Step 6: Final answer
    x = 314,904.91

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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.