Home / 913,246.80-1,369,870.20-414,610.80

Finding the Fourth Proportional to 913,246.80, 1,369,870.20 and 414,610.80

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Solution

The fourth proportional to 913,246.80, 1,369,870.20 and 414,610.80 is: 621,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,246.80 : 1,369,870.20 = 414,610.80 : x
  2. Step 2: Convert to fraction form
    913,246.80/1,369,870.20 = 414,610.80/x
  3. Step 3: Cross multiply
    913,246.80x = 1,369,870.20 × 414,610.80
  4. Step 4: Simplify right side
    913,246.80x = 567,962,979,518.16
  5. Step 5: Solve for x
    x = 567,962,979,518.16/913,246.80
  6. Step 6: Final answer
    x = 621,916.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.