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Finding the Fourth Proportional to 504,534.60, 696,263.20 and 275,090

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Solution

The fourth proportional to 504,534.60, 696,263.20 and 275,090 is: 379,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,534.60 : 696,263.20 = 275,090 : x
  2. Step 2: Convert to fraction form
    504,534.60/696,263.20 = 275,090/x
  3. Step 3: Cross multiply
    504,534.60x = 696,263.20 × 275,090
  4. Step 4: Simplify right side
    504,534.60x = 191,535,043,688
  5. Step 5: Solve for x
    x = 191,535,043,688/504,534.60
  6. Step 6: Final answer
    x = 379,627.17

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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.