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Finding the Fourth Proportional to 463,970.04, 640,248.36 and 272,946.54

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Solution

The fourth proportional to 463,970.04, 640,248.36 and 272,946.54 is: 376,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,970.04 : 640,248.36 = 272,946.54 : x
  2. Step 2: Convert to fraction form
    463,970.04/640,248.36 = 272,946.54/x
  3. Step 3: Cross multiply
    463,970.04x = 640,248.36 × 272,946.54
  4. Step 4: Simplify right side
    463,970.04x = 174,753,574,602.67
  5. Step 5: Solve for x
    x = 174,753,574,602.67/463,970.04
  6. Step 6: Final answer
    x = 376,648.40

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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.