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Finding the Fourth Proportional to 5,185,659.60, 7,764,492.60 and 4,065,915.60

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Solution

The fourth proportional to 5,185,659.60, 7,764,492.60 and 4,065,915.60 is: 6,087,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,659.60 : 7,764,492.60 = 4,065,915.60 : x
  2. Step 2: Convert to fraction form
    5,185,659.60/7,764,492.60 = 4,065,915.60/x
  3. Step 3: Cross multiply
    5,185,659.60x = 7,764,492.60 × 4,065,915.60
  4. Step 4: Simplify right side
    5,185,659.60x = 31,569,771,588,424.56
  5. Step 5: Solve for x
    x = 31,569,771,588,424.56/5,185,659.60
  6. Step 6: Final answer
    x = 6,087,898.94

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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.