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Finding the Fourth Proportional to 561,827.08, 775,131.45 and 319,938.13

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Solution

The fourth proportional to 561,827.08, 775,131.45 and 319,938.13 is: 441,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,827.08 : 775,131.45 = 319,938.13 : x
  2. Step 2: Convert to fraction form
    561,827.08/775,131.45 = 319,938.13/x
  3. Step 3: Cross multiply
    561,827.08x = 775,131.45 × 319,938.13
  4. Step 4: Simplify right side
    561,827.08x = 247,994,106,617.19
  5. Step 5: Solve for x
    x = 247,994,106,617.19/561,827.08
  6. Step 6: Final answer
    x = 441,406.47

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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.