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Finding the Fourth Proportional to 572,671.53, 858,928.82 and 316,977.05

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Solution

The fourth proportional to 572,671.53, 858,928.82 and 316,977.05 is: 475,422.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,671.53 : 858,928.82 = 316,977.05 : x
  2. Step 2: Convert to fraction form
    572,671.53/858,928.82 = 316,977.05/x
  3. Step 3: Cross multiply
    572,671.53x = 858,928.82 × 316,977.05
  4. Step 4: Simplify right side
    572,671.53x = 272,260,717,644.05
  5. Step 5: Solve for x
    x = 272,260,717,644.05/572,671.53
  6. Step 6: Final answer
    x = 475,422.13

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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.