Home / 1,290,078.02-1,935,190.86-391,549.07

Finding the Fourth Proportional to 1,290,078.02, 1,935,190.86 and 391,549.07

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Solution

The fourth proportional to 1,290,078.02, 1,935,190.86 and 391,549.07 is: 587,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,078.02 : 1,935,190.86 = 391,549.07 : x
  2. Step 2: Convert to fraction form
    1,290,078.02/1,935,190.86 = 391,549.07/x
  3. Step 3: Cross multiply
    1,290,078.02x = 1,935,190.86 × 391,549.07
  4. Step 4: Simplify right side
    1,290,078.02x = 757,722,181,505.50
  5. Step 5: Solve for x
    x = 757,722,181,505.50/1,290,078.02
  6. Step 6: Final answer
    x = 587,346.01

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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.