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Finding the Fourth Proportional to 604,917.60, 907,376.40 and 161,685.60

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Solution

The fourth proportional to 604,917.60, 907,376.40 and 161,685.60 is: 242,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,917.60 : 907,376.40 = 161,685.60 : x
  2. Step 2: Convert to fraction form
    604,917.60/907,376.40 = 161,685.60/x
  3. Step 3: Cross multiply
    604,917.60x = 907,376.40 × 161,685.60
  4. Step 4: Simplify right side
    604,917.60x = 146,709,697,659.84
  5. Step 5: Solve for x
    x = 146,709,697,659.84/604,917.60
  6. Step 6: Final answer
    x = 242,528.40

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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.