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Finding the Fourth Proportional to 674,544.60, 930,883.77 and 368,633.93

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Solution

The fourth proportional to 674,544.60, 930,883.77 and 368,633.93 is: 508,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,544.60 : 930,883.77 = 368,633.93 : x
  2. Step 2: Convert to fraction form
    674,544.60/930,883.77 = 368,633.93/x
  3. Step 3: Cross multiply
    674,544.60x = 930,883.77 × 368,633.93
  4. Step 4: Simplify right side
    674,544.60x = 343,155,337,853.90
  5. Step 5: Solve for x
    x = 343,155,337,853.90/674,544.60
  6. Step 6: Final answer
    x = 508,721.50

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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.