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Finding the Fourth Proportional to 616,942.17, 851,476.46 and 375,300.54

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Solution

The fourth proportional to 616,942.17, 851,476.46 and 375,300.54 is: 517,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,942.17 : 851,476.46 = 375,300.54 : x
  2. Step 2: Convert to fraction form
    616,942.17/851,476.46 = 375,300.54/x
  3. Step 3: Cross multiply
    616,942.17x = 851,476.46 × 375,300.54
  4. Step 4: Simplify right side
    616,942.17x = 319,559,573,358.79
  5. Step 5: Solve for x
    x = 319,559,573,358.79/616,942.17
  6. Step 6: Final answer
    x = 517,973.30

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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.