Home / 1,065,656.80-1,596,411.60-643,679.20

Finding the Fourth Proportional to 1,065,656.80, 1,596,411.60 and 643,679.20

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Solution

The fourth proportional to 1,065,656.80, 1,596,411.60 and 643,679.20 is: 964,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,656.80 : 1,596,411.60 = 643,679.20 : x
  2. Step 2: Convert to fraction form
    1,065,656.80/1,596,411.60 = 643,679.20/x
  3. Step 3: Cross multiply
    1,065,656.80x = 1,596,411.60 × 643,679.20
  4. Step 4: Simplify right side
    1,065,656.80x = 1,027,576,941,558.72
  5. Step 5: Solve for x
    x = 1,027,576,941,558.72/1,065,656.80
  6. Step 6: Final answer
    x = 964,266.30

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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.