Home / 903,285.56-1,246,444.26-521,435.36

Finding the Fourth Proportional to 903,285.56, 1,246,444.26 and 521,435.36

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Solution

The fourth proportional to 903,285.56, 1,246,444.26 and 521,435.36 is: 719,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,285.56 : 1,246,444.26 = 521,435.36 : x
  2. Step 2: Convert to fraction form
    903,285.56/1,246,444.26 = 521,435.36/x
  3. Step 3: Cross multiply
    903,285.56x = 1,246,444.26 × 521,435.36
  4. Step 4: Simplify right side
    903,285.56x = 649,940,111,433.03
  5. Step 5: Solve for x
    x = 649,940,111,433.03/903,285.56
  6. Step 6: Final answer
    x = 719,528.95

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1.5x scale

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.