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Finding the Fourth Proportional to 963,906.90, 1,445,860.35 and 609,612.90

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Solution

The fourth proportional to 963,906.90, 1,445,860.35 and 609,612.90 is: 914,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,906.90 : 1,445,860.35 = 609,612.90 : x
  2. Step 2: Convert to fraction form
    963,906.90/1,445,860.35 = 609,612.90/x
  3. Step 3: Cross multiply
    963,906.90x = 1,445,860.35 × 609,612.90
  4. Step 4: Simplify right side
    963,906.90x = 881,415,120,958.52
  5. Step 5: Solve for x
    x = 881,415,120,958.52/963,906.90
  6. Step 6: Final answer
    x = 914,419.35

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Half scale
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Double scale
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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.