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Finding the Fourth Proportional to 483,055.80, 724,583.70 and 304,985.40

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Solution

The fourth proportional to 483,055.80, 724,583.70 and 304,985.40 is: 457,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,055.80 : 724,583.70 = 304,985.40 : x
  2. Step 2: Convert to fraction form
    483,055.80/724,583.70 = 304,985.40/x
  3. Step 3: Cross multiply
    483,055.80x = 724,583.70 × 304,985.40
  4. Step 4: Simplify right side
    483,055.80x = 220,987,449,577.98
  5. Step 5: Solve for x
    x = 220,987,449,577.98/483,055.80
  6. Step 6: Final answer
    x = 457,478.10

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Double scale
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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.