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Finding the Fourth Proportional to 521,047.24, 719,058.06 and 291,602.71

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Solution

The fourth proportional to 521,047.24, 719,058.06 and 291,602.71 is: 402,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,047.24 : 719,058.06 = 291,602.71 : x
  2. Step 2: Convert to fraction form
    521,047.24/719,058.06 = 291,602.71/x
  3. Step 3: Cross multiply
    521,047.24x = 719,058.06 × 291,602.71
  4. Step 4: Simplify right side
    521,047.24x = 209,679,278,943.34
  5. Step 5: Solve for x
    x = 209,679,278,943.34/521,047.24
  6. Step 6: Final answer
    x = 402,418.94

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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.