Home / 563,535.24-777,676.64-305,418.45

Finding the Fourth Proportional to 563,535.24, 777,676.64 and 305,418.45

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Solution

The fourth proportional to 563,535.24, 777,676.64 and 305,418.45 is: 421,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,535.24 : 777,676.64 = 305,418.45 : x
  2. Step 2: Convert to fraction form
    563,535.24/777,676.64 = 305,418.45/x
  3. Step 3: Cross multiply
    563,535.24x = 777,676.64 × 305,418.45
  4. Step 4: Simplify right side
    563,535.24x = 237,516,793,990.01
  5. Step 5: Solve for x
    x = 237,516,793,990.01/563,535.24
  6. Step 6: Final answer
    x = 421,476.39

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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.