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Finding the Fourth Proportional to 4,747,888.02, 7,121,840.94 and 1,153,658.01

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Solution

The fourth proportional to 4,747,888.02, 7,121,840.94 and 1,153,658.01 is: 1,730,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747,888.02 : 7,121,840.94 = 1,153,658.01 : x
  2. Step 2: Convert to fraction form
    4,747,888.02/7,121,840.94 = 1,153,658.01/x
  3. Step 3: Cross multiply
    4,747,888.02x = 7,121,840.94 × 1,153,658.01
  4. Step 4: Simplify right side
    4,747,888.02x = 8,216,168,846,376.93
  5. Step 5: Solve for x
    x = 8,216,168,846,376.93/4,747,888.02
  6. Step 6: Final answer
    x = 1,730,489.18

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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.