Home / 353,328.90-487,549.53-238,856.55

Finding the Fourth Proportional to 353,328.90, 487,549.53 and 238,856.55

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Solution

The fourth proportional to 353,328.90, 487,549.53 and 238,856.55 is: 329,592.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,328.90 : 487,549.53 = 238,856.55 : x
  2. Step 2: Convert to fraction form
    353,328.90/487,549.53 = 238,856.55/x
  3. Step 3: Cross multiply
    353,328.90x = 487,549.53 × 238,856.55
  4. Step 4: Simplify right side
    353,328.90x = 116,454,398,689.92
  5. Step 5: Solve for x
    x = 116,454,398,689.92/353,328.90
  6. Step 6: Final answer
    x = 329,592.06

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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.