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Finding the Fourth Proportional to 607,193.40, 910,790.10 and 186,490.20

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Solution

The fourth proportional to 607,193.40, 910,790.10 and 186,490.20 is: 279,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,193.40 : 910,790.10 = 186,490.20 : x
  2. Step 2: Convert to fraction form
    607,193.40/910,790.10 = 186,490.20/x
  3. Step 3: Cross multiply
    607,193.40x = 910,790.10 × 186,490.20
  4. Step 4: Simplify right side
    607,193.40x = 169,853,427,907.02
  5. Step 5: Solve for x
    x = 169,853,427,907.02/607,193.40
  6. Step 6: Final answer
    x = 279,735.30

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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.