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Finding the Fourth Proportional to 532,643.40, 798,965.10 and 448,662.60

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Solution

The fourth proportional to 532,643.40, 798,965.10 and 448,662.60 is: 672,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,643.40 : 798,965.10 = 448,662.60 : x
  2. Step 2: Convert to fraction form
    532,643.40/798,965.10 = 448,662.60/x
  3. Step 3: Cross multiply
    532,643.40x = 798,965.10 × 448,662.60
  4. Step 4: Simplify right side
    532,643.40x = 358,465,759,075.26
  5. Step 5: Solve for x
    x = 358,465,759,075.26/532,643.40
  6. Step 6: Final answer
    x = 672,993.90

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Similar ratio
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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.