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Finding the Fourth Proportional to 904,238.64, 1,247,843.48 and 496,329.93

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Solution

The fourth proportional to 904,238.64, 1,247,843.48 and 496,329.93 is: 684,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,238.64 : 1,247,843.48 = 496,329.93 : x
  2. Step 2: Convert to fraction form
    904,238.64/1,247,843.48 = 496,329.93/x
  3. Step 3: Cross multiply
    904,238.64x = 1,247,843.48 × 496,329.93
  4. Step 4: Simplify right side
    904,238.64x = 619,342,064,597.71
  5. Step 5: Solve for x
    x = 619,342,064,597.71/904,238.64
  6. Step 6: Final answer
    x = 684,932.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.