Home / 913,624.70-1,260,813.19-505,764.23

Finding the Fourth Proportional to 913,624.70, 1,260,813.19 and 505,764.23

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Solution

The fourth proportional to 913,624.70, 1,260,813.19 and 505,764.23 is: 697,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,624.70 : 1,260,813.19 = 505,764.23 : x
  2. Step 2: Convert to fraction form
    913,624.70/1,260,813.19 = 505,764.23/x
  3. Step 3: Cross multiply
    913,624.70x = 1,260,813.19 × 505,764.23
  4. Step 4: Simplify right side
    913,624.70x = 637,674,214,101.82
  5. Step 5: Solve for x
    x = 637,674,214,101.82/913,624.70
  6. Step 6: Final answer
    x = 697,960.78

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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.