Home / 805,406.40-1,111,465.23-474,276.78

Finding the Fourth Proportional to 805,406.40, 1,111,465.23 and 474,276.78

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Solution

The fourth proportional to 805,406.40, 1,111,465.23 and 474,276.78 is: 654,504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,406.40 : 1,111,465.23 = 474,276.78 : x
  2. Step 2: Convert to fraction form
    805,406.40/1,111,465.23 = 474,276.78/x
  3. Step 3: Cross multiply
    805,406.40x = 1,111,465.23 × 474,276.78
  4. Step 4: Simplify right side
    805,406.40x = 527,142,148,587.82
  5. Step 5: Solve for x
    x = 527,142,148,587.82/805,406.40
  6. Step 6: Final answer
    x = 654,504.54

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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.