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Finding the Fourth Proportional to 874,902.22, 1,207,364.79 and 472,494.22

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Solution

The fourth proportional to 874,902.22, 1,207,364.79 and 472,494.22 is: 652,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,902.22 : 1,207,364.79 = 472,494.22 : x
  2. Step 2: Convert to fraction form
    874,902.22/1,207,364.79 = 472,494.22/x
  3. Step 3: Cross multiply
    874,902.22x = 1,207,364.79 × 472,494.22
  4. Step 4: Simplify right side
    874,902.22x = 570,472,884,706.51
  5. Step 5: Solve for x
    x = 570,472,884,706.51/874,902.22
  6. Step 6: Final answer
    x = 652,041.88

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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.