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Finding the Fourth Proportional to 835,193.40, 1,152,503.40 and 491,043.30

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Solution

The fourth proportional to 835,193.40, 1,152,503.40 and 491,043.30 is: 677,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,193.40 : 1,152,503.40 = 491,043.30 : x
  2. Step 2: Convert to fraction form
    835,193.40/1,152,503.40 = 491,043.30/x
  3. Step 3: Cross multiply
    835,193.40x = 1,152,503.40 × 491,043.30
  4. Step 4: Simplify right side
    835,193.40x = 565,929,072,797.22
  5. Step 5: Solve for x
    x = 565,929,072,797.22/835,193.40
  6. Step 6: Final answer
    x = 677,602.42

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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.