Home / 1,070,511.80-1,605,767.70-439,878.20

Finding the Fourth Proportional to 1,070,511.80, 1,605,767.70 and 439,878.20

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Solution

The fourth proportional to 1,070,511.80, 1,605,767.70 and 439,878.20 is: 659,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,511.80 : 1,605,767.70 = 439,878.20 : x
  2. Step 2: Convert to fraction form
    1,070,511.80/1,605,767.70 = 439,878.20/x
  3. Step 3: Cross multiply
    1,070,511.80x = 1,605,767.70 × 439,878.20
  4. Step 4: Simplify right side
    1,070,511.80x = 706,342,205,494.14
  5. Step 5: Solve for x
    x = 706,342,205,494.14/1,070,511.80
  6. Step 6: Final answer
    x = 659,817.30

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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.