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Finding the Fourth Proportional to 561,292.41, 773,673.57 and 438,570.21

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Solution

The fourth proportional to 561,292.41, 773,673.57 and 438,570.21 is: 604,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,292.41 : 773,673.57 = 438,570.21 : x
  2. Step 2: Convert to fraction form
    561,292.41/773,673.57 = 438,570.21/x
  3. Step 3: Cross multiply
    561,292.41x = 773,673.57 × 438,570.21
  4. Step 4: Simplify right side
    561,292.41x = 339,310,180,066.35
  5. Step 5: Solve for x
    x = 339,310,180,066.35/561,292.41
  6. Step 6: Final answer
    x = 604,515.89

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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.