Home / 1,008,049.60-1,391,112.48-555,342.40

Finding the Fourth Proportional to 1,008,049.60, 1,391,112.48 and 555,342.40

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Solution

The fourth proportional to 1,008,049.60, 1,391,112.48 and 555,342.40 is: 766,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,049.60 : 1,391,112.48 = 555,342.40 : x
  2. Step 2: Convert to fraction form
    1,008,049.60/1,391,112.48 = 555,342.40/x
  3. Step 3: Cross multiply
    1,008,049.60x = 1,391,112.48 × 555,342.40
  4. Step 4: Simplify right side
    1,008,049.60x = 772,543,743,313.15
  5. Step 5: Solve for x
    x = 772,543,743,313.15/1,008,049.60
  6. Step 6: Final answer
    x = 766,374.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.