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Finding the Fourth Proportional to 615,816.30, 923,724.45 and 404,309.10

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Solution

The fourth proportional to 615,816.30, 923,724.45 and 404,309.10 is: 606,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,816.30 : 923,724.45 = 404,309.10 : x
  2. Step 2: Convert to fraction form
    615,816.30/923,724.45 = 404,309.10/x
  3. Step 3: Cross multiply
    615,816.30x = 923,724.45 × 404,309.10
  4. Step 4: Simplify right side
    615,816.30x = 373,470,201,027.50
  5. Step 5: Solve for x
    x = 373,470,201,027.50/615,816.30
  6. Step 6: Final answer
    x = 606,463.65

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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.