Home / 1,288,985.36-1,933,674.60-657,554.72

Finding the Fourth Proportional to 1,288,985.36, 1,933,674.60 and 657,554.72

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Solution

The fourth proportional to 1,288,985.36, 1,933,674.60 and 657,554.72 is: 986,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,985.36 : 1,933,674.60 = 657,554.72 : x
  2. Step 2: Convert to fraction form
    1,288,985.36/1,933,674.60 = 657,554.72/x
  3. Step 3: Cross multiply
    1,288,985.36x = 1,933,674.60 × 657,554.72
  4. Step 4: Simplify right side
    1,288,985.36x = 1,271,496,860,174.11
  5. Step 5: Solve for x
    x = 1,271,496,860,174.11/1,288,985.36
  6. Step 6: Final answer
    x = 986,432.35

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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.