Home / 1,121,011.60-1,681,517.40-279,563.35

Finding the Fourth Proportional to 1,121,011.60, 1,681,517.40 and 279,563.35

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Solution

The fourth proportional to 1,121,011.60, 1,681,517.40 and 279,563.35 is: 419,345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,011.60 : 1,681,517.40 = 279,563.35 : x
  2. Step 2: Convert to fraction form
    1,121,011.60/1,681,517.40 = 279,563.35/x
  3. Step 3: Cross multiply
    1,121,011.60x = 1,681,517.40 × 279,563.35
  4. Step 4: Simplify right side
    1,121,011.60x = 470,090,637,427.29
  5. Step 5: Solve for x
    x = 470,090,637,427.29/1,121,011.60
  6. Step 6: Final answer
    x = 419,345.03

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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.