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Finding the Fourth Proportional to 468,501.15, 646,523.85 and 253,639.47

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Solution

The fourth proportional to 468,501.15, 646,523.85 and 253,639.47 is: 350,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,501.15 : 646,523.85 = 253,639.47 : x
  2. Step 2: Convert to fraction form
    468,501.15/646,523.85 = 253,639.47/x
  3. Step 3: Cross multiply
    468,501.15x = 646,523.85 × 253,639.47
  4. Step 4: Simplify right side
    468,501.15x = 163,983,966,656.36
  5. Step 5: Solve for x
    x = 163,983,966,656.36/468,501.15
  6. Step 6: Final answer
    x = 350,018.28

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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.