Home / 806,165.06-1,209,455.36-578,724.34

Finding the Fourth Proportional to 806,165.06, 1,209,455.36 and 578,724.34

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Solution

The fourth proportional to 806,165.06, 1,209,455.36 and 578,724.34 is: 868,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,165.06 : 1,209,455.36 = 578,724.34 : x
  2. Step 2: Convert to fraction form
    806,165.06/1,209,455.36 = 578,724.34/x
  3. Step 3: Cross multiply
    806,165.06x = 1,209,455.36 × 578,724.34
  4. Step 4: Simplify right side
    806,165.06x = 699,941,254,975.46
  5. Step 5: Solve for x
    x = 699,941,254,975.46/806,165.06
  6. Step 6: Final answer
    x = 868,235.66

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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.