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Finding the Fourth Proportional to 616,458.64, 924,955.08 and 217,384.56

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Solution

The fourth proportional to 616,458.64, 924,955.08 and 217,384.56 is: 326,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,458.64 : 924,955.08 = 217,384.56 : x
  2. Step 2: Convert to fraction form
    616,458.64/924,955.08 = 217,384.56/x
  3. Step 3: Cross multiply
    616,458.64x = 924,955.08 × 217,384.56
  4. Step 4: Simplify right side
    616,458.64x = 201,070,953,085.57
  5. Step 5: Solve for x
    x = 201,070,953,085.57/616,458.64
  6. Step 6: Final answer
    x = 326,171.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.