Home / 1,178,888.34-1,626,865.93-642,344.34

Finding the Fourth Proportional to 1,178,888.34, 1,626,865.93 and 642,344.34

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Solution

The fourth proportional to 1,178,888.34, 1,626,865.93 and 642,344.34 is: 886,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,888.34 : 1,626,865.93 = 642,344.34 : x
  2. Step 2: Convert to fraction form
    1,178,888.34/1,626,865.93 = 642,344.34/x
  3. Step 3: Cross multiply
    1,178,888.34x = 1,626,865.93 × 642,344.34
  4. Step 4: Simplify right side
    1,178,888.34x = 1,045,008,128,978.01
  5. Step 5: Solve for x
    x = 1,045,008,128,978.01/1,178,888.34
  6. Step 6: Final answer
    x = 886,435.20

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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.