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Finding the Fourth Proportional to 607,358.10, 911,037.15 and 291,738.90

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Solution

The fourth proportional to 607,358.10, 911,037.15 and 291,738.90 is: 437,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,358.10 : 911,037.15 = 291,738.90 : x
  2. Step 2: Convert to fraction form
    607,358.10/911,037.15 = 291,738.90/x
  3. Step 3: Cross multiply
    607,358.10x = 911,037.15 × 291,738.90
  4. Step 4: Simplify right side
    607,358.10x = 265,784,976,000.14
  5. Step 5: Solve for x
    x = 265,784,976,000.14/607,358.10
  6. Step 6: Final answer
    x = 437,608.35

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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.