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Finding the Fourth Proportional to 563,876.40, 844,259.40 and 439,460.40

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Solution

The fourth proportional to 563,876.40, 844,259.40 and 439,460.40 is: 657,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,876.40 : 844,259.40 = 439,460.40 : x
  2. Step 2: Convert to fraction form
    563,876.40/844,259.40 = 439,460.40/x
  3. Step 3: Cross multiply
    563,876.40x = 844,259.40 × 439,460.40
  4. Step 4: Simplify right side
    563,876.40x = 371,018,573,627.76
  5. Step 5: Solve for x
    x = 371,018,573,627.76/563,876.40
  6. Step 6: Final answer
    x = 657,978.55

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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.