Home / 816,999.60-1,222,583.40-517,623.60

Finding the Fourth Proportional to 816,999.60, 1,222,583.40 and 517,623.60

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Solution

The fourth proportional to 816,999.60, 1,222,583.40 and 517,623.60 is: 774,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,999.60 : 1,222,583.40 = 517,623.60 : x
  2. Step 2: Convert to fraction form
    816,999.60/1,222,583.40 = 517,623.60/x
  3. Step 3: Cross multiply
    816,999.60x = 1,222,583.40 × 517,623.60
  4. Step 4: Simplify right side
    816,999.60x = 632,838,020,808.24
  5. Step 5: Solve for x
    x = 632,838,020,808.24/816,999.60
  6. Step 6: Final answer
    x = 774,587.92

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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.