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Finding the Fourth Proportional to 470,949.60, 706,424.40 and 155,330.40

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Solution

The fourth proportional to 470,949.60, 706,424.40 and 155,330.40 is: 232,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,949.60 : 706,424.40 = 155,330.40 : x
  2. Step 2: Convert to fraction form
    470,949.60/706,424.40 = 155,330.40/x
  3. Step 3: Cross multiply
    470,949.60x = 706,424.40 × 155,330.40
  4. Step 4: Simplify right side
    470,949.60x = 109,729,184,621.76
  5. Step 5: Solve for x
    x = 109,729,184,621.76/470,949.60
  6. Step 6: Final answer
    x = 232,995.60

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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.