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Finding the Fourth Proportional to 562,103.72, 775,715.43 and 307,454.91

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Solution

The fourth proportional to 562,103.72, 775,715.43 and 307,454.91 is: 424,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,103.72 : 775,715.43 = 307,454.91 : x
  2. Step 2: Convert to fraction form
    562,103.72/775,715.43 = 307,454.91/x
  3. Step 3: Cross multiply
    562,103.72x = 775,715.43 × 307,454.91
  4. Step 4: Simplify right side
    562,103.72x = 238,497,515,960.28
  5. Step 5: Solve for x
    x = 238,497,515,960.28/562,103.72
  6. Step 6: Final answer
    x = 424,294.50

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1.5x scale

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.