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Finding the Fourth Proportional to 622,616.15, 933,924.47 and 480,668.72

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Solution

The fourth proportional to 622,616.15, 933,924.47 and 480,668.72 is: 721,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,616.15 : 933,924.47 = 480,668.72 : x
  2. Step 2: Convert to fraction form
    622,616.15/933,924.47 = 480,668.72/x
  3. Step 3: Cross multiply
    622,616.15x = 933,924.47 × 480,668.72
  4. Step 4: Simplify right side
    622,616.15x = 448,908,272,498.61
  5. Step 5: Solve for x
    x = 448,908,272,498.61/622,616.15
  6. Step 6: Final answer
    x = 721,003.25

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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.