Home / 805,515.57-1,111,593.38-437,984.73

Finding the Fourth Proportional to 805,515.57, 1,111,593.38 and 437,984.73

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Solution

The fourth proportional to 805,515.57, 1,111,593.38 and 437,984.73 is: 604,409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,515.57 : 1,111,593.38 = 437,984.73 : x
  2. Step 2: Convert to fraction form
    805,515.57/1,111,593.38 = 437,984.73/x
  3. Step 3: Cross multiply
    805,515.57x = 1,111,593.38 × 437,984.73
  4. Step 4: Simplify right side
    805,515.57x = 486,860,924,219.16
  5. Step 5: Solve for x
    x = 486,860,924,219.16/805,515.57
  6. Step 6: Final answer
    x = 604,409.08

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Double scale
Find fourth proportional to 805,516.57, 1,111,594.75 and 437,985.73
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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.