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Finding the Fourth Proportional to 581,105, 801,968.64 and 354,794.24

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Solution

The fourth proportional to 581,105, 801,968.64 and 354,794.24 is: 489,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,105 : 801,968.64 = 354,794.24 : x
  2. Step 2: Convert to fraction form
    581,105/801,968.64 = 354,794.24/x
  3. Step 3: Cross multiply
    581,105x = 801,968.64 × 354,794.24
  4. Step 4: Simplify right side
    581,105x = 284,533,854,132.63
  5. Step 5: Solve for x
    x = 284,533,854,132.63/581,105
  6. Step 6: Final answer
    x = 489,642.76

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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.