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Finding the Fourth Proportional to 483,203.80, 724,805.70 and 349,802.20

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Solution

The fourth proportional to 483,203.80, 724,805.70 and 349,802.20 is: 524,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,203.80 : 724,805.70 = 349,802.20 : x
  2. Step 2: Convert to fraction form
    483,203.80/724,805.70 = 349,802.20/x
  3. Step 3: Cross multiply
    483,203.80x = 724,805.70 × 349,802.20
  4. Step 4: Simplify right side
    483,203.80x = 253,538,628,432.54
  5. Step 5: Solve for x
    x = 253,538,628,432.54/483,203.80
  6. Step 6: Final answer
    x = 524,703.30

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Similar ratio
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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.