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Finding the Fourth Proportional to 604,947.60, 907,421.40 and 161,715.60

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Solution

The fourth proportional to 604,947.60, 907,421.40 and 161,715.60 is: 242,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,947.60 : 907,421.40 = 161,715.60 : x
  2. Step 2: Convert to fraction form
    604,947.60/907,421.40 = 161,715.60/x
  3. Step 3: Cross multiply
    604,947.60x = 907,421.40 × 161,715.60
  4. Step 4: Simplify right side
    604,947.60x = 146,744,196,153.84
  5. Step 5: Solve for x
    x = 146,744,196,153.84/604,947.60
  6. Step 6: Final answer
    x = 242,573.40

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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.