Home / 1,201,865.52-1,658,666.53-685,630.78

Finding the Fourth Proportional to 1,201,865.52, 1,658,666.53 and 685,630.78

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Solution

The fourth proportional to 1,201,865.52, 1,658,666.53 and 685,630.78 is: 946,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,865.52 : 1,658,666.53 = 685,630.78 : x
  2. Step 2: Convert to fraction form
    1,201,865.52/1,658,666.53 = 685,630.78/x
  3. Step 3: Cross multiply
    1,201,865.52x = 1,658,666.53 × 685,630.78
  4. Step 4: Simplify right side
    1,201,865.52x = 1,137,232,826,723.79
  5. Step 5: Solve for x
    x = 1,137,232,826,723.79/1,201,865.52
  6. Step 6: Final answer
    x = 946,223.02

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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.