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Finding the Fourth Proportional to 891,197.69, 1,229,853.41 and 483,299.40

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Solution

The fourth proportional to 891,197.69, 1,229,853.41 and 483,299.40 is: 666,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,197.69 : 1,229,853.41 = 483,299.40 : x
  2. Step 2: Convert to fraction form
    891,197.69/1,229,853.41 = 483,299.40/x
  3. Step 3: Cross multiply
    891,197.69x = 1,229,853.41 × 483,299.40
  4. Step 4: Simplify right side
    891,197.69x = 594,387,415,140.95
  5. Step 5: Solve for x
    x = 594,387,415,140.95/891,197.69
  6. Step 6: Final answer
    x = 666,953.50

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Double scale
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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.