Home / 805,447.78-1,111,522.02-442,895.02

Finding the Fourth Proportional to 805,447.78, 1,111,522.02 and 442,895.02

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Solution

The fourth proportional to 805,447.78, 1,111,522.02 and 442,895.02 is: 611,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,447.78 : 1,111,522.02 = 442,895.02 : x
  2. Step 2: Convert to fraction form
    805,447.78/1,111,522.02 = 442,895.02/x
  3. Step 3: Cross multiply
    805,447.78x = 1,111,522.02 × 442,895.02
  4. Step 4: Simplify right side
    805,447.78x = 492,287,567,278.34
  5. Step 5: Solve for x
    x = 492,287,567,278.34/805,447.78
  6. Step 6: Final answer
    x = 611,197.37

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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.