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Finding the Fourth Proportional to 558,994.98, 771,374.16 and 317,282.48

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Solution

The fourth proportional to 558,994.98, 771,374.16 and 317,282.48 is: 437,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,994.98 : 771,374.16 = 317,282.48 : x
  2. Step 2: Convert to fraction form
    558,994.98/771,374.16 = 317,282.48/x
  3. Step 3: Cross multiply
    558,994.98x = 771,374.16 × 317,282.48
  4. Step 4: Simplify right side
    558,994.98x = 244,743,506,492.72
  5. Step 5: Solve for x
    x = 244,743,506,492.72/558,994.98
  6. Step 6: Final answer
    x = 437,827.74

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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.