Home / 285,328.56-393,685.77-168,983.28

Finding the Fourth Proportional to 285,328.56, 393,685.77 and 168,983.28

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Solution

The fourth proportional to 285,328.56, 393,685.77 and 168,983.28 is: 233,156.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,328.56 : 393,685.77 = 168,983.28 : x
  2. Step 2: Convert to fraction form
    285,328.56/393,685.77 = 168,983.28/x
  3. Step 3: Cross multiply
    285,328.56x = 393,685.77 × 168,983.28
  4. Step 4: Simplify right side
    285,328.56x = 66,526,312,703.93
  5. Step 5: Solve for x
    x = 66,526,312,703.93/285,328.56
  6. Step 6: Final answer
    x = 233,156.87

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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.