Home / 1,985,416.80-2,974,611.60-1,919,637.60

Finding the Fourth Proportional to 1,985,416.80, 2,974,611.60 and 1,919,637.60

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Solution

The fourth proportional to 1,985,416.80, 2,974,611.60 and 1,919,637.60 is: 2,876,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,416.80 : 2,974,611.60 = 1,919,637.60 : x
  2. Step 2: Convert to fraction form
    1,985,416.80/2,974,611.60 = 1,919,637.60/x
  3. Step 3: Cross multiply
    1,985,416.80x = 2,974,611.60 × 1,919,637.60
  4. Step 4: Simplify right side
    1,985,416.80x = 5,710,176,272,756.16
  5. Step 5: Solve for x
    x = 5,710,176,272,756.16/1,985,416.80
  6. Step 6: Final answer
    x = 2,876,059.21

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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.