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Finding the Fourth Proportional to 546,656.70, 819,985.05 and 476,672.70

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Solution

The fourth proportional to 546,656.70, 819,985.05 and 476,672.70 is: 715,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,656.70 : 819,985.05 = 476,672.70 : x
  2. Step 2: Convert to fraction form
    546,656.70/819,985.05 = 476,672.70/x
  3. Step 3: Cross multiply
    546,656.70x = 819,985.05 × 476,672.70
  4. Step 4: Simplify right side
    546,656.70x = 390,864,487,743.14
  5. Step 5: Solve for x
    x = 390,864,487,743.14/546,656.70
  6. Step 6: Final answer
    x = 715,009.05

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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.