Home / 898,983.69-1,240,635.21-517,010.77

Finding the Fourth Proportional to 898,983.69, 1,240,635.21 and 517,010.77

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Solution

The fourth proportional to 898,983.69, 1,240,635.21 and 517,010.77 is: 713,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,983.69 : 1,240,635.21 = 517,010.77 : x
  2. Step 2: Convert to fraction form
    898,983.69/1,240,635.21 = 517,010.77/x
  3. Step 3: Cross multiply
    898,983.69x = 1,240,635.21 × 517,010.77
  4. Step 4: Simplify right side
    898,983.69x = 641,421,764,823.22
  5. Step 5: Solve for x
    x = 641,421,764,823.22/898,983.69
  6. Step 6: Final answer
    x = 713,496.56

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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.