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Finding the Fourth Proportional to 7,955,492.60, 10,978,289.46 and 4,863,194.96

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Solution

The fourth proportional to 7,955,492.60, 10,978,289.46 and 4,863,194.96 is: 6,711,031.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955,492.60 : 10,978,289.46 = 4,863,194.96 : x
  2. Step 2: Convert to fraction form
    7,955,492.60/10,978,289.46 = 4,863,194.96/x
  3. Step 3: Cross multiply
    7,955,492.60x = 10,978,289.46 × 4,863,194.96
  4. Step 4: Simplify right side
    7,955,492.60x = 53,389,561,971,293.12
  5. Step 5: Solve for x
    x = 53,389,561,971,293.12/7,955,492.60
  6. Step 6: Final answer
    x = 6,711,031.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.