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Finding the Fourth Proportional to 662,133.52, 913,681.04 and 371,678.56

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Solution

The fourth proportional to 662,133.52, 913,681.04 and 371,678.56 is: 512,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,133.52 : 913,681.04 = 371,678.56 : x
  2. Step 2: Convert to fraction form
    662,133.52/913,681.04 = 371,678.56/x
  3. Step 3: Cross multiply
    662,133.52x = 913,681.04 × 371,678.56
  4. Step 4: Simplify right side
    662,133.52x = 339,595,653,246.50
  5. Step 5: Solve for x
    x = 339,595,653,246.50/662,133.52
  6. Step 6: Final answer
    x = 512,880.93

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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.