Home / 688,552.45-1,032,828.68-641,896.45

Finding the Fourth Proportional to 688,552.45, 1,032,828.68 and 641,896.45

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Solution

The fourth proportional to 688,552.45, 1,032,828.68 and 641,896.45 is: 962,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,552.45 : 1,032,828.68 = 641,896.45 : x
  2. Step 2: Convert to fraction form
    688,552.45/1,032,828.68 = 641,896.45/x
  3. Step 3: Cross multiply
    688,552.45x = 1,032,828.68 × 641,896.45
  4. Step 4: Simplify right side
    688,552.45x = 662,969,059,940.70
  5. Step 5: Solve for x
    x = 662,969,059,940.70/688,552.45
  6. Step 6: Final answer
    x = 962,844.68

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Double scale
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Similar ratio
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1.5x scale

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.