Home / 813,235.52-1,219,853.04-393,331.52

Finding the Fourth Proportional to 813,235.52, 1,219,853.04 and 393,331.52

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Solution

The fourth proportional to 813,235.52, 1,219,853.04 and 393,331.52 is: 589,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,235.52 : 1,219,853.04 = 393,331.52 : x
  2. Step 2: Convert to fraction form
    813,235.52/1,219,853.04 = 393,331.52/x
  3. Step 3: Cross multiply
    813,235.52x = 1,219,853.04 × 393,331.52
  4. Step 4: Simplify right side
    813,235.52x = 479,806,650,399.82
  5. Step 5: Solve for x
    x = 479,806,650,399.82/813,235.52
  6. Step 6: Final answer
    x = 589,997.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.