Home / 957,246.77-1,321,000.77-521,664.24

Finding the Fourth Proportional to 957,246.77, 1,321,000.77 and 521,664.24

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Solution

The fourth proportional to 957,246.77, 1,321,000.77 and 521,664.24 is: 719,896.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,246.77 : 1,321,000.77 = 521,664.24 : x
  2. Step 2: Convert to fraction form
    957,246.77/1,321,000.77 = 521,664.24/x
  3. Step 3: Cross multiply
    957,246.77x = 1,321,000.77 × 521,664.24
  4. Step 4: Simplify right side
    957,246.77x = 689,118,862,981.78
  5. Step 5: Solve for x
    x = 689,118,862,981.78/957,246.77
  6. Step 6: Final answer
    x = 719,896.77

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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.