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Finding the Fourth Proportional to 907,355.40, 1,361,033.10 and 636,750.60

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Solution

The fourth proportional to 907,355.40, 1,361,033.10 and 636,750.60 is: 955,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,355.40 : 1,361,033.10 = 636,750.60 : x
  2. Step 2: Convert to fraction form
    907,355.40/1,361,033.10 = 636,750.60/x
  3. Step 3: Cross multiply
    907,355.40x = 1,361,033.10 × 636,750.60
  4. Step 4: Simplify right side
    907,355.40x = 866,638,643,044.86
  5. Step 5: Solve for x
    x = 866,638,643,044.86/907,355.40
  6. Step 6: Final answer
    x = 955,125.90

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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.