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Finding the Fourth Proportional to 4,978,490.22, 7,468,254.32 and 1,904,475.06

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Solution

The fourth proportional to 4,978,490.22, 7,468,254.32 and 1,904,475.06 is: 2,856,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978,490.22 : 7,468,254.32 = 1,904,475.06 : x
  2. Step 2: Convert to fraction form
    4,978,490.22/7,468,254.32 = 1,904,475.06/x
  3. Step 3: Cross multiply
    4,978,490.22x = 7,468,254.32 × 1,904,475.06
  4. Step 4: Simplify right side
    4,978,490.22x = 14,223,104,094,177.26
  5. Step 5: Solve for x
    x = 14,223,104,094,177.26/4,978,490.22
  6. Step 6: Final answer
    x = 2,856,911.12

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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.