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Finding the Fourth Proportional to 562,904.16, 776,798.40 and 304,779

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Solution

The fourth proportional to 562,904.16, 776,798.40 and 304,779 is: 420,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,904.16 : 776,798.40 = 304,779 : x
  2. Step 2: Convert to fraction form
    562,904.16/776,798.40 = 304,779/x
  3. Step 3: Cross multiply
    562,904.16x = 776,798.40 × 304,779
  4. Step 4: Simplify right side
    562,904.16x = 236,751,839,553.60
  5. Step 5: Solve for x
    x = 236,751,839,553.60/562,904.16
  6. Step 6: Final answer
    x = 420,589.96

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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.