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Finding the Fourth Proportional to 604,947.10, 907,420.65 and 161,715.10

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Solution

The fourth proportional to 604,947.10, 907,420.65 and 161,715.10 is: 242,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,947.10 : 907,420.65 = 161,715.10 : x
  2. Step 2: Convert to fraction form
    604,947.10/907,420.65 = 161,715.10/x
  3. Step 3: Cross multiply
    604,947.10x = 907,420.65 × 161,715.10
  4. Step 4: Simplify right side
    604,947.10x = 146,743,621,156.82
  5. Step 5: Solve for x
    x = 146,743,621,156.82/604,947.10
  6. Step 6: Final answer
    x = 242,572.65

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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.