Home / 1,086,365.61-1,629,360.50-287,658.63

Finding the Fourth Proportional to 1,086,365.61, 1,629,360.50 and 287,658.63

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Solution

The fourth proportional to 1,086,365.61, 1,629,360.50 and 287,658.63 is: 431,438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,365.61 : 1,629,360.50 = 287,658.63 : x
  2. Step 2: Convert to fraction form
    1,086,365.61/1,629,360.50 = 287,658.63/x
  3. Step 3: Cross multiply
    1,086,365.61x = 1,629,360.50 × 287,658.63
  4. Step 4: Simplify right side
    1,086,365.61x = 468,699,607,767.82
  5. Step 5: Solve for x
    x = 468,699,607,767.82/1,086,365.61
  6. Step 6: Final answer
    x = 431,438.19

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1.5x scale

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.