Home / 401,075.85-553,475.79-219,783.81

Finding the Fourth Proportional to 401,075.85, 553,475.79 and 219,783.81

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Solution

The fourth proportional to 401,075.85, 553,475.79 and 219,783.81 is: 303,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,075.85 : 553,475.79 = 219,783.81 : x
  2. Step 2: Convert to fraction form
    401,075.85/553,475.79 = 219,783.81/x
  3. Step 3: Cross multiply
    401,075.85x = 553,475.79 × 219,783.81
  4. Step 4: Simplify right side
    401,075.85x = 121,645,017,868.96
  5. Step 5: Solve for x
    x = 121,645,017,868.96/401,075.85
  6. Step 6: Final answer
    x = 303,296.79

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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.