Home / 1,285,404.14-1,773,963.88-712,623.98

Finding the Fourth Proportional to 1,285,404.14, 1,773,963.88 and 712,623.98

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Solution

The fourth proportional to 1,285,404.14, 1,773,963.88 and 712,623.98 is: 983,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,404.14 : 1,773,963.88 = 712,623.98 : x
  2. Step 2: Convert to fraction form
    1,285,404.14/1,773,963.88 = 712,623.98/x
  3. Step 3: Cross multiply
    1,285,404.14x = 1,773,963.88 × 712,623.98
  4. Step 4: Simplify right side
    1,285,404.14x = 1,264,169,200,541.84
  5. Step 5: Solve for x
    x = 1,264,169,200,541.84/1,285,404.14
  6. Step 6: Final answer
    x = 983,479.95

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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.