Home / 297,384.18-409,353.01-256,677.47

Finding the Fourth Proportional to 297,384.18, 409,353.01 and 256,677.47

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Solution

The fourth proportional to 297,384.18, 409,353.01 and 256,677.47 is: 353,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,384.18 : 409,353.01 = 256,677.47 : x
  2. Step 2: Convert to fraction form
    297,384.18/409,353.01 = 256,677.47/x
  3. Step 3: Cross multiply
    297,384.18x = 409,353.01 × 256,677.47
  4. Step 4: Simplify right side
    297,384.18x = 105,071,694,943.69
  5. Step 5: Solve for x
    x = 105,071,694,943.69/297,384.18
  6. Step 6: Final answer
    x = 353,319.72

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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.