Home / 1,186,439.16-1,637,277.87-642,562.50

Finding the Fourth Proportional to 1,186,439.16, 1,637,277.87 and 642,562.50

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Solution

The fourth proportional to 1,186,439.16, 1,637,277.87 and 642,562.50 is: 886,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,439.16 : 1,637,277.87 = 642,562.50 : x
  2. Step 2: Convert to fraction form
    1,186,439.16/1,637,277.87 = 642,562.50/x
  3. Step 3: Cross multiply
    1,186,439.16x = 1,637,277.87 × 642,562.50
  4. Step 4: Simplify right side
    1,186,439.16x = 1,052,053,361,341.88
  5. Step 5: Solve for x
    x = 1,052,053,361,341.88/1,186,439.16
  6. Step 6: Final answer
    x = 886,731.82

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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.