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Finding the Fourth Proportional to 487,117.52, 729,495.36 and 336,936.32

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Solution

The fourth proportional to 487,117.52, 729,495.36 and 336,936.32 is: 504,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,117.52 : 729,495.36 = 336,936.32 : x
  2. Step 2: Convert to fraction form
    487,117.52/729,495.36 = 336,936.32/x
  3. Step 3: Cross multiply
    487,117.52x = 729,495.36 × 336,936.32
  4. Step 4: Simplify right side
    487,117.52x = 245,793,482,055.48
  5. Step 5: Solve for x
    x = 245,793,482,055.48/487,117.52
  6. Step 6: Final answer
    x = 504,587.64

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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.