Home / 859,140.55-1,185,743.28-618,220.63

Finding the Fourth Proportional to 859,140.55, 1,185,743.28 and 618,220.63

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Solution

The fourth proportional to 859,140.55, 1,185,743.28 and 618,220.63 is: 853,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,140.55 : 1,185,743.28 = 618,220.63 : x
  2. Step 2: Convert to fraction form
    859,140.55/1,185,743.28 = 618,220.63/x
  3. Step 3: Cross multiply
    859,140.55x = 1,185,743.28 × 618,220.63
  4. Step 4: Simplify right side
    859,140.55x = 733,050,957,579.87
  5. Step 5: Solve for x
    x = 733,050,957,579.87/859,140.55
  6. Step 6: Final answer
    x = 853,237.53

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Double scale
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1.5x scale

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.