Home / 678,579.02-936,554.22-392,265.08

Finding the Fourth Proportional to 678,579.02, 936,554.22 and 392,265.08

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Solution

The fourth proportional to 678,579.02, 936,554.22 and 392,265.08 is: 541,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,579.02 : 936,554.22 = 392,265.08 : x
  2. Step 2: Convert to fraction form
    678,579.02/936,554.22 = 392,265.08/x
  3. Step 3: Cross multiply
    678,579.02x = 936,554.22 × 392,265.08
  4. Step 4: Simplify right side
    678,579.02x = 367,377,516,032.64
  5. Step 5: Solve for x
    x = 367,377,516,032.64/678,579.02
  6. Step 6: Final answer
    x = 541,392.39

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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.