Home / 805,407.40-1,111,466.61-474,277.78

Finding the Fourth Proportional to 805,407.40, 1,111,466.61 and 474,277.78

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Solution

The fourth proportional to 805,407.40, 1,111,466.61 and 474,277.78 is: 654,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,407.40 : 1,111,466.61 = 474,277.78 : x
  2. Step 2: Convert to fraction form
    805,407.40/1,111,466.61 = 474,277.78/x
  3. Step 3: Cross multiply
    805,407.40x = 1,111,466.61 × 474,277.78
  4. Step 4: Simplify right side
    805,407.40x = 527,143,916,334.93
  5. Step 5: Solve for x
    x = 527,143,916,334.93/805,407.40
  6. Step 6: Final answer
    x = 654,505.93

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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.