Home / 1,289,719.52-1,931,628.70-616,274.20

Finding the Fourth Proportional to 1,289,719.52, 1,931,628.70 and 616,274.20

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Solution

The fourth proportional to 1,289,719.52, 1,931,628.70 and 616,274.20 is: 923,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,719.52 : 1,931,628.70 = 616,274.20 : x
  2. Step 2: Convert to fraction form
    1,289,719.52/1,931,628.70 = 616,274.20/x
  3. Step 3: Cross multiply
    1,289,719.52x = 1,931,628.70 × 616,274.20
  4. Step 4: Simplify right side
    1,289,719.52x = 1,190,412,931,789.54
  5. Step 5: Solve for x
    x = 1,190,412,931,789.54/1,289,719.52
  6. Step 6: Final answer
    x = 923,001.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.