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Finding the Fourth Proportional to 454,682.86, 627,518.91 and 261,151.18

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Solution

The fourth proportional to 454,682.86, 627,518.91 and 261,151.18 is: 360,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,682.86 : 627,518.91 = 261,151.18 : x
  2. Step 2: Convert to fraction form
    454,682.86/627,518.91 = 261,151.18/x
  3. Step 3: Cross multiply
    454,682.86x = 627,518.91 × 261,151.18
  4. Step 4: Simplify right side
    454,682.86x = 163,877,303,818.81
  5. Step 5: Solve for x
    x = 163,877,303,818.81/454,682.86
  6. Step 6: Final answer
    x = 360,421.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.