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Finding the Fourth Proportional to 922,416.60, 1,384,208.10 and 543,336.60

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Solution

The fourth proportional to 922,416.60, 1,384,208.10 and 543,336.60 is: 815,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,416.60 : 1,384,208.10 = 543,336.60 : x
  2. Step 2: Convert to fraction form
    922,416.60/1,384,208.10 = 543,336.60/x
  3. Step 3: Cross multiply
    922,416.60x = 1,384,208.10 × 543,336.60
  4. Step 4: Simplify right side
    922,416.60x = 752,090,922,746.46
  5. Step 5: Solve for x
    x = 752,090,922,746.46/922,416.60
  6. Step 6: Final answer
    x = 815,348.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.