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Finding the Fourth Proportional to 1,766,019.60, 2,646,307.80 and 1,314,622.80

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Solution

The fourth proportional to 1,766,019.60, 2,646,307.80 and 1,314,622.80 is: 1,969,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,019.60 : 2,646,307.80 = 1,314,622.80 : x
  2. Step 2: Convert to fraction form
    1,766,019.60/2,646,307.80 = 1,314,622.80/x
  3. Step 3: Cross multiply
    1,766,019.60x = 2,646,307.80 × 1,314,622.80
  4. Step 4: Simplify right side
    1,766,019.60x = 3,478,896,569,697.84
  5. Step 5: Solve for x
    x = 3,478,896,569,697.84/1,766,019.60
  6. Step 6: Final answer
    x = 1,969,908.24

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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.