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Finding the Fourth Proportional to 5,602,972.80, 8,404,459.20 and 5,271,196.80

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Solution

The fourth proportional to 5,602,972.80, 8,404,459.20 and 5,271,196.80 is: 7,906,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,602,972.80 : 8,404,459.20 = 5,271,196.80 : x
  2. Step 2: Convert to fraction form
    5,602,972.80/8,404,459.20 = 5,271,196.80/x
  3. Step 3: Cross multiply
    5,602,972.80x = 8,404,459.20 × 5,271,196.80
  4. Step 4: Simplify right side
    5,602,972.80x = 44,301,558,440,770.55
  5. Step 5: Solve for x
    x = 44,301,558,440,770.55/5,602,972.80
  6. Step 6: Final answer
    x = 7,906,795.20

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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.