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Finding the Fourth Proportional to 4,996,595.76, 7,494,868.64 and 1,210,078.56

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Solution

The fourth proportional to 4,996,595.76, 7,494,868.64 and 1,210,078.56 is: 1,815,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996,595.76 : 7,494,868.64 = 1,210,078.56 : x
  2. Step 2: Convert to fraction form
    4,996,595.76/7,494,868.64 = 1,210,078.56/x
  3. Step 3: Cross multiply
    4,996,595.76x = 7,494,868.64 × 1,210,078.56
  4. Step 4: Simplify right side
    4,996,595.76x = 9,069,379,851,280.36
  5. Step 5: Solve for x
    x = 9,069,379,851,280.36/4,996,595.76
  6. Step 6: Final answer
    x = 1,815,111.79

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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.