Home / 563,944.58-778,243.70-305,821.45

Finding the Fourth Proportional to 563,944.58, 778,243.70 and 305,821.45

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Solution

The fourth proportional to 563,944.58, 778,243.70 and 305,821.45 is: 422,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,944.58 : 778,243.70 = 305,821.45 : x
  2. Step 2: Convert to fraction form
    563,944.58/778,243.70 = 305,821.45/x
  3. Step 3: Cross multiply
    563,944.58x = 778,243.70 × 305,821.45
  4. Step 4: Simplify right side
    563,944.58x = 238,003,616,787.37
  5. Step 5: Solve for x
    x = 238,003,616,787.37/563,944.58
  6. Step 6: Final answer
    x = 422,033.70

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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.