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Finding the Fourth Proportional to 3,865,643.60, 5,798,465.40 and 2,521,950.80

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Solution

The fourth proportional to 3,865,643.60, 5,798,465.40 and 2,521,950.80 is: 3,782,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,643.60 : 5,798,465.40 = 2,521,950.80 : x
  2. Step 2: Convert to fraction form
    3,865,643.60/5,798,465.40 = 2,521,950.80/x
  3. Step 3: Cross multiply
    3,865,643.60x = 5,798,465.40 × 2,521,950.80
  4. Step 4: Simplify right side
    3,865,643.60x = 14,623,444,454,302.32
  5. Step 5: Solve for x
    x = 14,623,444,454,302.32/3,865,643.60
  6. Step 6: Final answer
    x = 3,782,926.20

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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.