Home / 414,067,917.60-622,377,334.80-391,109,666.40

Finding the Fourth Proportional to 414,067,917.60, 622,377,334.80 and 391,109,666.40

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Solution

The fourth proportional to 414,067,917.60, 622,377,334.80 and 391,109,666.40 is: 587,869,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,067,917.60 : 622,377,334.80 = 391,109,666.40 : x
  2. Step 2: Convert to fraction form
    414,067,917.60/622,377,334.80 = 391,109,666.40/x
  3. Step 3: Cross multiply
    414,067,917.60x = 622,377,334.80 × 391,109,666.40
  4. Step 4: Simplify right side
    414,067,917.60x = 243,417,791,788,549,088
  5. Step 5: Solve for x
    x = 243,417,791,788,549,088/414,067,917.60
  6. Step 6: Final answer
    x = 587,869,239.42

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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.