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Finding the Fourth Proportional to 501,903.72, 692,627.70 and 272,460.90

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Solution

The fourth proportional to 501,903.72, 692,627.70 and 272,460.90 is: 375,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,903.72 : 692,627.70 = 272,460.90 : x
  2. Step 2: Convert to fraction form
    501,903.72/692,627.70 = 272,460.90/x
  3. Step 3: Cross multiply
    501,903.72x = 692,627.70 × 272,460.90
  4. Step 4: Simplify right side
    501,903.72x = 188,713,966,506.93
  5. Step 5: Solve for x
    x = 188,713,966,506.93/501,903.72
  6. Step 6: Final answer
    x = 375,996.35

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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.