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Finding the Fourth Proportional to 607,230.30, 910,845.45 and 213,246.30

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Solution

The fourth proportional to 607,230.30, 910,845.45 and 213,246.30 is: 319,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,230.30 : 910,845.45 = 213,246.30 : x
  2. Step 2: Convert to fraction form
    607,230.30/910,845.45 = 213,246.30/x
  3. Step 3: Cross multiply
    607,230.30x = 910,845.45 × 213,246.30
  4. Step 4: Simplify right side
    607,230.30x = 194,234,422,084.34
  5. Step 5: Solve for x
    x = 194,234,422,084.34/607,230.30
  6. Step 6: Final answer
    x = 319,869.45

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Half scale
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Double scale
Find fourth proportional to 607,231.30, 910,846.95 and 213,247.30
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.