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Finding the Fourth Proportional to 572,134.48, 858,007.32 and 198,070

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Solution

The fourth proportional to 572,134.48, 858,007.32 and 198,070 is: 297,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,134.48 : 858,007.32 = 198,070 : x
  2. Step 2: Convert to fraction form
    572,134.48/858,007.32 = 198,070/x
  3. Step 3: Cross multiply
    572,134.48x = 858,007.32 × 198,070
  4. Step 4: Simplify right side
    572,134.48x = 169,945,509,872.40
  5. Step 5: Solve for x
    x = 169,945,509,872.40/572,134.48
  6. Step 6: Final answer
    x = 297,037.70

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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.