Home / 783,125.80-1,174,688.70-543,977.35

Finding the Fourth Proportional to 783,125.80, 1,174,688.70 and 543,977.35

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Solution

The fourth proportional to 783,125.80, 1,174,688.70 and 543,977.35 is: 815,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,125.80 : 1,174,688.70 = 543,977.35 : x
  2. Step 2: Convert to fraction form
    783,125.80/1,174,688.70 = 543,977.35/x
  3. Step 3: Cross multiply
    783,125.80x = 1,174,688.70 × 543,977.35
  4. Step 4: Simplify right side
    783,125.80x = 639,004,046,100.95
  5. Step 5: Solve for x
    x = 639,004,046,100.95/783,125.80
  6. Step 6: Final answer
    x = 815,966.03

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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.