Home / 1,302,485.56-1,798,307.80-813,200.81

Finding the Fourth Proportional to 1,302,485.56, 1,798,307.80 and 813,200.81

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Solution

The fourth proportional to 1,302,485.56, 1,798,307.80 and 813,200.81 is: 1,122,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,485.56 : 1,798,307.80 = 813,200.81 : x
  2. Step 2: Convert to fraction form
    1,302,485.56/1,798,307.80 = 813,200.81/x
  3. Step 3: Cross multiply
    1,302,485.56x = 1,798,307.80 × 813,200.81
  4. Step 4: Simplify right side
    1,302,485.56x = 1,462,385,348,564.78
  5. Step 5: Solve for x
    x = 1,462,385,348,564.78/1,302,485.56
  6. Step 6: Final answer
    x = 1,122,765.12

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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.