Home / 1,285,289.40-1,773,699.54-712,366.56

Finding the Fourth Proportional to 1,285,289.40, 1,773,699.54 and 712,366.56

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Solution

The fourth proportional to 1,285,289.40, 1,773,699.54 and 712,366.56 is: 983,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,289.40 : 1,773,699.54 = 712,366.56 : x
  2. Step 2: Convert to fraction form
    1,285,289.40/1,773,699.54 = 712,366.56/x
  3. Step 3: Cross multiply
    1,285,289.40x = 1,773,699.54 × 712,366.56
  4. Step 4: Simplify right side
    1,285,289.40x = 1,263,524,239,783.38
  5. Step 5: Solve for x
    x = 1,263,524,239,783.38/1,285,289.40
  6. Step 6: Final answer
    x = 983,065.95

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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.