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Finding the Fourth Proportional to 616,699.28, 851,307.32 and 375,059.46

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Solution

The fourth proportional to 616,699.28, 851,307.32 and 375,059.46 is: 517,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,699.28 : 851,307.32 = 375,059.46 : x
  2. Step 2: Convert to fraction form
    616,699.28/851,307.32 = 375,059.46/x
  3. Step 3: Cross multiply
    616,699.28x = 851,307.32 × 375,059.46
  4. Step 4: Simplify right side
    616,699.28x = 319,290,863,733.25
  5. Step 5: Solve for x
    x = 319,290,863,733.25/616,699.28
  6. Step 6: Final answer
    x = 517,741.59

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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.