Home / 1,091,788.93-1,638,190.66-417,647.40

Finding the Fourth Proportional to 1,091,788.93, 1,638,190.66 and 417,647.40

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Solution

The fourth proportional to 1,091,788.93, 1,638,190.66 and 417,647.40 is: 626,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,788.93 : 1,638,190.66 = 417,647.40 : x
  2. Step 2: Convert to fraction form
    1,091,788.93/1,638,190.66 = 417,647.40/x
  3. Step 3: Cross multiply
    1,091,788.93x = 1,638,190.66 × 417,647.40
  4. Step 4: Simplify right side
    1,091,788.93x = 684,186,069,853.28
  5. Step 5: Solve for x
    x = 684,186,069,853.28/1,091,788.93
  6. Step 6: Final answer
    x = 626,665.15

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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.