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Finding the Fourth Proportional to 891,891.14, 1,230,810.62 and 509,925.92

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Solution

The fourth proportional to 891,891.14, 1,230,810.62 and 509,925.92 is: 703,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,891.14 : 1,230,810.62 = 509,925.92 : x
  2. Step 2: Convert to fraction form
    891,891.14/1,230,810.62 = 509,925.92/x
  3. Step 3: Cross multiply
    891,891.14x = 1,230,810.62 × 509,925.92
  4. Step 4: Simplify right side
    891,891.14x = 627,622,237,749.27
  5. Step 5: Solve for x
    x = 627,622,237,749.27/891,891.14
  6. Step 6: Final answer
    x = 703,698.25

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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.