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Finding the Fourth Proportional to 468,467.48, 646,484.98 and 253,607.40

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Solution

The fourth proportional to 468,467.48, 646,484.98 and 253,607.40 is: 349,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,467.48 : 646,484.98 = 253,607.40 : x
  2. Step 2: Convert to fraction form
    468,467.48/646,484.98 = 253,607.40/x
  3. Step 3: Cross multiply
    468,467.48x = 646,484.98 × 253,607.40
  4. Step 4: Simplify right side
    468,467.48x = 163,953,374,916.85
  5. Step 5: Solve for x
    x = 163,953,374,916.85/468,467.48
  6. Step 6: Final answer
    x = 349,978.13

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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.