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Finding the Fourth Proportional to 606,878.20, 910,317.30 and 492,716.80

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Solution

The fourth proportional to 606,878.20, 910,317.30 and 492,716.80 is: 739,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,878.20 : 910,317.30 = 492,716.80 : x
  2. Step 2: Convert to fraction form
    606,878.20/910,317.30 = 492,716.80/x
  3. Step 3: Cross multiply
    606,878.20x = 910,317.30 × 492,716.80
  4. Step 4: Simplify right side
    606,878.20x = 448,528,627,040.64
  5. Step 5: Solve for x
    x = 448,528,627,040.64/606,878.20
  6. Step 6: Final answer
    x = 739,075.20

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Similar ratio
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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.