Home / 656,137.05-899,563.78-644,179.62

Finding the Fourth Proportional to 656,137.05, 899,563.78 and 644,179.62

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Solution

The fourth proportional to 656,137.05, 899,563.78 and 644,179.62 is: 883,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,137.05 : 899,563.78 = 644,179.62 : x
  2. Step 2: Convert to fraction form
    656,137.05/899,563.78 = 644,179.62/x
  3. Step 3: Cross multiply
    656,137.05x = 899,563.78 × 644,179.62
  4. Step 4: Simplify right side
    656,137.05x = 579,480,653,966.16
  5. Step 5: Solve for x
    x = 579,480,653,966.16/656,137.05
  6. Step 6: Final answer
    x = 883,170.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.