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Finding the Fourth Proportional to 553,696.53, 830,614.10 and 216,693.66

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Solution

The fourth proportional to 553,696.53, 830,614.10 and 216,693.66 is: 325,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,696.53 : 830,614.10 = 216,693.66 : x
  2. Step 2: Convert to fraction form
    553,696.53/830,614.10 = 216,693.66/x
  3. Step 3: Cross multiply
    553,696.53x = 830,614.10 × 216,693.66
  4. Step 4: Simplify right side
    553,696.53x = 179,988,804,399.63
  5. Step 5: Solve for x
    x = 179,988,804,399.63/553,696.53
  6. Step 6: Final answer
    x = 325,067.60

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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.