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Finding the Fourth Proportional to 607,395.92, 911,097.12 and 398,357.60

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Solution

The fourth proportional to 607,395.92, 911,097.12 and 398,357.60 is: 597,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,395.92 : 911,097.12 = 398,357.60 : x
  2. Step 2: Convert to fraction form
    607,395.92/911,097.12 = 398,357.60/x
  3. Step 3: Cross multiply
    607,395.92x = 911,097.12 × 398,357.60
  4. Step 4: Simplify right side
    607,395.92x = 362,942,462,090.11
  5. Step 5: Solve for x
    x = 362,942,462,090.11/607,395.92
  6. Step 6: Final answer
    x = 597,538.52

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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.