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Finding the Fourth Proportional to 662,127, 913,672.08 and 371,672.07

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Solution

The fourth proportional to 662,127, 913,672.08 and 371,672.07 is: 512,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,127 : 913,672.08 = 371,672.07 : x
  2. Step 2: Convert to fraction form
    662,127/913,672.08 = 371,672.07/x
  3. Step 3: Cross multiply
    662,127x = 913,672.08 × 371,672.07
  4. Step 4: Simplify right side
    662,127x = 339,586,393,274.81
  5. Step 5: Solve for x
    x = 339,586,393,274.81/662,127
  6. Step 6: Final answer
    x = 512,871.99

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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.