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Finding the Fourth Proportional to 922,668.90, 1,384,003.35 and 543,200.10

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Solution

The fourth proportional to 922,668.90, 1,384,003.35 and 543,200.10 is: 814,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,668.90 : 1,384,003.35 = 543,200.10 : x
  2. Step 2: Convert to fraction form
    922,668.90/1,384,003.35 = 543,200.10/x
  3. Step 3: Cross multiply
    922,668.90x = 1,384,003.35 × 543,200.10
  4. Step 4: Simplify right side
    922,668.90x = 751,790,758,120.34
  5. Step 5: Solve for x
    x = 751,790,758,120.34/922,668.90
  6. Step 6: Final answer
    x = 814,800.15

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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.