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Finding the Fourth Proportional to 504,055.80, 756,083.70 and 486,948.60

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Solution

The fourth proportional to 504,055.80, 756,083.70 and 486,948.60 is: 730,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,055.80 : 756,083.70 = 486,948.60 : x
  2. Step 2: Convert to fraction form
    504,055.80/756,083.70 = 486,948.60/x
  3. Step 3: Cross multiply
    504,055.80x = 756,083.70 × 486,948.60
  4. Step 4: Simplify right side
    504,055.80x = 368,173,899,197.82
  5. Step 5: Solve for x
    x = 368,173,899,197.82/504,055.80
  6. Step 6: Final answer
    x = 730,422.90

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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.