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Finding the Fourth Proportional to 607,163.40, 910,745.10 and 186,460.20

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Solution

The fourth proportional to 607,163.40, 910,745.10 and 186,460.20 is: 279,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,163.40 : 910,745.10 = 186,460.20 : x
  2. Step 2: Convert to fraction form
    607,163.40/910,745.10 = 186,460.20/x
  3. Step 3: Cross multiply
    607,163.40x = 910,745.10 × 186,460.20
  4. Step 4: Simplify right side
    607,163.40x = 169,817,713,495.02
  5. Step 5: Solve for x
    x = 169,817,713,495.02/607,163.40
  6. Step 6: Final answer
    x = 279,690.30

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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.