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Finding the Fourth Proportional to 608,966.40, 913,449.60 and 234,989.40

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Solution

The fourth proportional to 608,966.40, 913,449.60 and 234,989.40 is: 352,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,966.40 : 913,449.60 = 234,989.40 : x
  2. Step 2: Convert to fraction form
    608,966.40/913,449.60 = 234,989.40/x
  3. Step 3: Cross multiply
    608,966.40x = 913,449.60 × 234,989.40
  4. Step 4: Simplify right side
    608,966.40x = 214,650,973,434.24
  5. Step 5: Solve for x
    x = 214,650,973,434.24/608,966.40
  6. Step 6: Final answer
    x = 352,484.10

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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.