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Finding the Fourth Proportional to 676,846.26, 934,073.57 and 386,505.13

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Solution

The fourth proportional to 676,846.26, 934,073.57 and 386,505.13 is: 533,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,846.26 : 934,073.57 = 386,505.13 : x
  2. Step 2: Convert to fraction form
    676,846.26/934,073.57 = 386,505.13/x
  3. Step 3: Cross multiply
    676,846.26x = 934,073.57 × 386,505.13
  4. Step 4: Simplify right side
    676,846.26x = 361,024,224,669.89
  5. Step 5: Solve for x
    x = 361,024,224,669.89/676,846.26
  6. Step 6: Final answer
    x = 533,391.77

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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.