Home / 898,628.70-1,240,005.60-516,778.50

Finding the Fourth Proportional to 898,628.70, 1,240,005.60 and 516,778.50

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Solution

The fourth proportional to 898,628.70, 1,240,005.60 and 516,778.50 is: 713,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,628.70 : 1,240,005.60 = 516,778.50 : x
  2. Step 2: Convert to fraction form
    898,628.70/1,240,005.60 = 516,778.50/x
  3. Step 3: Cross multiply
    898,628.70x = 1,240,005.60 × 516,778.50
  4. Step 4: Simplify right side
    898,628.70x = 640,808,233,959.60
  5. Step 5: Solve for x
    x = 640,808,233,959.60/898,628.70
  6. Step 6: Final answer
    x = 713,095.67

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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.