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Finding the Fourth Proportional to 521,534.39, 719,657.93 and 292,059.77

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Solution

The fourth proportional to 521,534.39, 719,657.93 and 292,059.77 is: 403,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,534.39 : 719,657.93 = 292,059.77 : x
  2. Step 2: Convert to fraction form
    521,534.39/719,657.93 = 292,059.77/x
  3. Step 3: Cross multiply
    521,534.39x = 719,657.93 × 292,059.77
  4. Step 4: Simplify right side
    521,534.39x = 210,183,126,646.34
  5. Step 5: Solve for x
    x = 210,183,126,646.34/521,534.39
  6. Step 6: Final answer
    x = 403,009.15

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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.