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Finding the Fourth Proportional to 470,775.60, 706,163.40 and 155,156.40

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Solution

The fourth proportional to 470,775.60, 706,163.40 and 155,156.40 is: 232,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,775.60 : 706,163.40 = 155,156.40 : x
  2. Step 2: Convert to fraction form
    470,775.60/706,163.40 = 155,156.40/x
  3. Step 3: Cross multiply
    470,775.60x = 706,163.40 × 155,156.40
  4. Step 4: Simplify right side
    470,775.60x = 109,565,770,955.76
  5. Step 5: Solve for x
    x = 109,565,770,955.76/470,775.60
  6. Step 6: Final answer
    x = 232,734.60

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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.