Home / 1,121,912.83-1,681,868.89-411,776.11

Finding the Fourth Proportional to 1,121,912.83, 1,681,868.89 and 411,776.11

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Solution

The fourth proportional to 1,121,912.83, 1,681,868.89 and 411,776.11 is: 617,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,912.83 : 1,681,868.89 = 411,776.11 : x
  2. Step 2: Convert to fraction form
    1,121,912.83/1,681,868.89 = 411,776.11/x
  3. Step 3: Cross multiply
    1,121,912.83x = 1,681,868.89 × 411,776.11
  4. Step 4: Simplify right side
    1,121,912.83x = 692,553,429,054.22
  5. Step 5: Solve for x
    x = 692,553,429,054.22/1,121,912.83
  6. Step 6: Final answer
    x = 617,297.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.