Home / 1,226,855.70-1,840,283.55-385,406.10

Finding the Fourth Proportional to 1,226,855.70, 1,840,283.55 and 385,406.10

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Solution

The fourth proportional to 1,226,855.70, 1,840,283.55 and 385,406.10 is: 578,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,855.70 : 1,840,283.55 = 385,406.10 : x
  2. Step 2: Convert to fraction form
    1,226,855.70/1,840,283.55 = 385,406.10/x
  3. Step 3: Cross multiply
    1,226,855.70x = 1,840,283.55 × 385,406.10
  4. Step 4: Simplify right side
    1,226,855.70x = 709,256,505,899.66
  5. Step 5: Solve for x
    x = 709,256,505,899.66/1,226,855.70
  6. Step 6: Final answer
    x = 578,109.15

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Double scale
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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.