Home / 1,226,855.20-1,840,282.80-385,405.60

Finding the Fourth Proportional to 1,226,855.20, 1,840,282.80 and 385,405.60

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Solution

The fourth proportional to 1,226,855.20, 1,840,282.80 and 385,405.60 is: 578,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,855.20 : 1,840,282.80 = 385,405.60 : x
  2. Step 2: Convert to fraction form
    1,226,855.20/1,840,282.80 = 385,405.60/x
  3. Step 3: Cross multiply
    1,226,855.20x = 1,840,282.80 × 385,405.60
  4. Step 4: Simplify right side
    1,226,855.20x = 709,255,296,703.68
  5. Step 5: Solve for x
    x = 709,255,296,703.68/1,226,855.20
  6. Step 6: Final answer
    x = 578,108.40

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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.