Home / 563,958.81-778,263.39-305,835.66

Finding the Fourth Proportional to 563,958.81, 778,263.39 and 305,835.66

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Solution

The fourth proportional to 563,958.81, 778,263.39 and 305,835.66 is: 422,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,958.81 : 778,263.39 = 305,835.66 : x
  2. Step 2: Convert to fraction form
    563,958.81/778,263.39 = 305,835.66/x
  3. Step 3: Cross multiply
    563,958.81x = 778,263.39 × 305,835.66
  4. Step 4: Simplify right side
    563,958.81x = 238,020,697,534.49
  5. Step 5: Solve for x
    x = 238,020,697,534.49/563,958.81
  6. Step 6: Final answer
    x = 422,053.34

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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.