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Finding the Fourth Proportional to 501,762.25, 692,420.43 and 272,319.96

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Solution

The fourth proportional to 501,762.25, 692,420.43 and 272,319.96 is: 375,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,762.25 : 692,420.43 = 272,319.96 : x
  2. Step 2: Convert to fraction form
    501,762.25/692,420.43 = 272,319.96/x
  3. Step 3: Cross multiply
    501,762.25x = 692,420.43 × 272,319.96
  4. Step 4: Simplify right side
    501,762.25x = 188,559,903,800.78
  5. Step 5: Solve for x
    x = 188,559,903,800.78/501,762.25
  6. Step 6: Final answer
    x = 375,795.32

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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.