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Finding the Fourth Proportional to 874,952.64, 1,207,434.66 and 472,544.64

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Solution

The fourth proportional to 874,952.64, 1,207,434.66 and 472,544.64 is: 652,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,952.64 : 1,207,434.66 = 472,544.64 : x
  2. Step 2: Convert to fraction form
    874,952.64/1,207,434.66 = 472,544.64/x
  3. Step 3: Cross multiply
    874,952.64x = 1,207,434.66 × 472,544.64
  4. Step 4: Simplify right side
    874,952.64x = 570,566,776,733.22
  5. Step 5: Solve for x
    x = 570,566,776,733.22/874,952.64
  6. Step 6: Final answer
    x = 652,111.61

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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.