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Finding the Fourth Proportional to 805,607, 1,111,766.93 and 461,509.44

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Solution

The fourth proportional to 805,607, 1,111,766.93 and 461,509.44 is: 636,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,607 : 1,111,766.93 = 461,509.44 : x
  2. Step 2: Convert to fraction form
    805,607/1,111,766.93 = 461,509.44/x
  3. Step 3: Cross multiply
    805,607x = 1,111,766.93 × 461,509.44
  4. Step 4: Simplify right side
    805,607x = 513,090,933,274.82
  5. Step 5: Solve for x
    x = 513,090,933,274.82/805,607
  6. Step 6: Final answer
    x = 636,899.80

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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.