Home / 1,219,869.01-1,683,405.79-668,589.19

Finding the Fourth Proportional to 1,219,869.01, 1,683,405.79 and 668,589.19

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Solution

The fourth proportional to 1,219,869.01, 1,683,405.79 and 668,589.19 is: 922,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,869.01 : 1,683,405.79 = 668,589.19 : x
  2. Step 2: Convert to fraction form
    1,219,869.01/1,683,405.79 = 668,589.19/x
  3. Step 3: Cross multiply
    1,219,869.01x = 1,683,405.79 × 668,589.19
  4. Step 4: Simplify right side
    1,219,869.01x = 1,125,506,907,697.42
  5. Step 5: Solve for x
    x = 1,125,506,907,697.42/1,219,869.01
  6. Step 6: Final answer
    x = 922,645.71

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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.