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Finding the Fourth Proportional to 4,907,729.76, 7,364,957.45 and 1,712,855.97

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Solution

The fourth proportional to 4,907,729.76, 7,364,957.45 and 1,712,855.97 is: 2,570,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907,729.76 : 7,364,957.45 = 1,712,855.97 : x
  2. Step 2: Convert to fraction form
    4,907,729.76/7,364,957.45 = 1,712,855.97/x
  3. Step 3: Cross multiply
    4,907,729.76x = 7,364,957.45 × 1,712,855.97
  4. Step 4: Simplify right side
    4,907,729.76x = 12,615,111,338,099.01
  5. Step 5: Solve for x
    x = 12,615,111,338,099.01/4,907,729.76
  6. Step 6: Final answer
    x = 2,570,457.62

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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.