Home / 1,213,406.30-1,820,109.45-414,568.10

Finding the Fourth Proportional to 1,213,406.30, 1,820,109.45 and 414,568.10

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Solution

The fourth proportional to 1,213,406.30, 1,820,109.45 and 414,568.10 is: 621,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,406.30 : 1,820,109.45 = 414,568.10 : x
  2. Step 2: Convert to fraction form
    1,213,406.30/1,820,109.45 = 414,568.10/x
  3. Step 3: Cross multiply
    1,213,406.30x = 1,820,109.45 × 414,568.10
  4. Step 4: Simplify right side
    1,213,406.30x = 754,559,316,478.55
  5. Step 5: Solve for x
    x = 754,559,316,478.55/1,213,406.30
  6. Step 6: Final answer
    x = 621,852.15

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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.