Home / 1,070,203.80-1,605,305.70-439,570.20

Finding the Fourth Proportional to 1,070,203.80, 1,605,305.70 and 439,570.20

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Solution

The fourth proportional to 1,070,203.80, 1,605,305.70 and 439,570.20 is: 659,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,203.80 : 1,605,305.70 = 439,570.20 : x
  2. Step 2: Convert to fraction form
    1,070,203.80/1,605,305.70 = 439,570.20/x
  3. Step 3: Cross multiply
    1,070,203.80x = 1,605,305.70 × 439,570.20
  4. Step 4: Simplify right side
    1,070,203.80x = 705,644,547,610.14
  5. Step 5: Solve for x
    x = 705,644,547,610.14/1,070,203.80
  6. Step 6: Final answer
    x = 659,355.30

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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.