Home / 989,611.53-1,365,827.22-679,259.06

Finding the Fourth Proportional to 989,611.53, 1,365,827.22 and 679,259.06

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Solution

The fourth proportional to 989,611.53, 1,365,827.22 and 679,259.06 is: 937,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,611.53 : 1,365,827.22 = 679,259.06 : x
  2. Step 2: Convert to fraction form
    989,611.53/1,365,827.22 = 679,259.06/x
  3. Step 3: Cross multiply
    989,611.53x = 1,365,827.22 × 679,259.06
  4. Step 4: Simplify right side
    989,611.53x = 927,750,506,750.48
  5. Step 5: Solve for x
    x = 927,750,506,750.48/989,611.53
  6. Step 6: Final answer
    x = 937,489.59

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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.