Home / 813,971.10-1,220,665.05-414,479.10

Finding the Fourth Proportional to 813,971.10, 1,220,665.05 and 414,479.10

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Solution

The fourth proportional to 813,971.10, 1,220,665.05 and 414,479.10 is: 621,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,971.10 : 1,220,665.05 = 414,479.10 : x
  2. Step 2: Convert to fraction form
    813,971.10/1,220,665.05 = 414,479.10/x
  3. Step 3: Cross multiply
    813,971.10x = 1,220,665.05 × 414,479.10
  4. Step 4: Simplify right side
    813,971.10x = 505,940,151,325.46
  5. Step 5: Solve for x
    x = 505,940,151,325.46/813,971.10
  6. Step 6: Final answer
    x = 621,570.17

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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.