Home / 1,285,601.92-1,774,102.40-712,637.12

Finding the Fourth Proportional to 1,285,601.92, 1,774,102.40 and 712,637.12

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Solution

The fourth proportional to 1,285,601.92, 1,774,102.40 and 712,637.12 is: 983,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,601.92 : 1,774,102.40 = 712,637.12 : x
  2. Step 2: Convert to fraction form
    1,285,601.92/1,774,102.40 = 712,637.12/x
  3. Step 3: Cross multiply
    1,285,601.92x = 1,774,102.40 × 712,637.12
  4. Step 4: Simplify right side
    1,285,601.92x = 1,264,291,224,921.09
  5. Step 5: Solve for x
    x = 1,264,291,224,921.09/1,285,601.92
  6. Step 6: Final answer
    x = 983,423.57

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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.