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Finding the Fourth Proportional to 615,098.40, 922,647.60 and 455,666.10

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Solution

The fourth proportional to 615,098.40, 922,647.60 and 455,666.10 is: 683,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,098.40 : 922,647.60 = 455,666.10 : x
  2. Step 2: Convert to fraction form
    615,098.40/922,647.60 = 455,666.10/x
  3. Step 3: Cross multiply
    615,098.40x = 922,647.60 × 455,666.10
  4. Step 4: Simplify right side
    615,098.40x = 420,419,233,566.36
  5. Step 5: Solve for x
    x = 420,419,233,566.36/615,098.40
  6. Step 6: Final answer
    x = 683,499.15

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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.