Home / 313,916.06-432,713.40-256,791.62

Finding the Fourth Proportional to 313,916.06, 432,713.40 and 256,791.62

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Solution

The fourth proportional to 313,916.06, 432,713.40 and 256,791.62 is: 353,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,916.06 : 432,713.40 = 256,791.62 : x
  2. Step 2: Convert to fraction form
    313,916.06/432,713.40 = 256,791.62/x
  3. Step 3: Cross multiply
    313,916.06x = 432,713.40 × 256,791.62
  4. Step 4: Simplify right side
    313,916.06x = 111,117,174,981.71
  5. Step 5: Solve for x
    x = 111,117,174,981.71/313,916.06
  6. Step 6: Final answer
    x = 353,970.98

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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.