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Finding the Fourth Proportional to 561,293.91, 773,675.64 and 438,571.71

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Solution

The fourth proportional to 561,293.91, 773,675.64 and 438,571.71 is: 604,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,293.91 : 773,675.64 = 438,571.71 : x
  2. Step 2: Convert to fraction form
    561,293.91/773,675.64 = 438,571.71/x
  3. Step 3: Cross multiply
    561,293.91x = 773,675.64 × 438,571.71
  4. Step 4: Simplify right side
    561,293.91x = 339,312,248,420.14
  5. Step 5: Solve for x
    x = 339,312,248,420.14/561,293.91
  6. Step 6: Final answer
    x = 604,517.96

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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.