Home / 1,213,401.30-1,820,101.95-414,563.10

Finding the Fourth Proportional to 1,213,401.30, 1,820,101.95 and 414,563.10

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Solution

The fourth proportional to 1,213,401.30, 1,820,101.95 and 414,563.10 is: 621,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,401.30 : 1,820,101.95 = 414,563.10 : x
  2. Step 2: Convert to fraction form
    1,213,401.30/1,820,101.95 = 414,563.10/x
  3. Step 3: Cross multiply
    1,213,401.30x = 1,820,101.95 × 414,563.10
  4. Step 4: Simplify right side
    1,213,401.30x = 754,547,106,708.05
  5. Step 5: Solve for x
    x = 754,547,106,708.05/1,213,401.30
  6. Step 6: Final answer
    x = 621,844.65

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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.