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Finding the Fourth Proportional to 607,410.90, 911,505.15 and 354,690.90

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Solution

The fourth proportional to 607,410.90, 911,505.15 and 354,690.90 is: 532,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,410.90 : 911,505.15 = 354,690.90 : x
  2. Step 2: Convert to fraction form
    607,410.90/911,505.15 = 354,690.90/x
  3. Step 3: Cross multiply
    607,410.90x = 911,505.15 × 354,690.90
  4. Step 4: Simplify right side
    607,410.90x = 323,302,582,008.14
  5. Step 5: Solve for x
    x = 323,302,582,008.14/607,410.90
  6. Step 6: Final answer
    x = 532,263.39

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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.