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Finding the Fourth Proportional to 546,838.08, 821,422.88 and 514,878.40

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Solution

The fourth proportional to 546,838.08, 821,422.88 and 514,878.40 is: 773,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,838.08 : 821,422.88 = 514,878.40 : x
  2. Step 2: Convert to fraction form
    546,838.08/821,422.88 = 514,878.40/x
  3. Step 3: Cross multiply
    546,838.08x = 821,422.88 × 514,878.40
  4. Step 4: Simplify right side
    546,838.08x = 422,932,898,177.79
  5. Step 5: Solve for x
    x = 422,932,898,177.79/546,838.08
  6. Step 6: Final answer
    x = 773,415.23

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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.