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Finding the Fourth Proportional to 507,289.60, 760,876.80 and 133,350.40

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Solution

The fourth proportional to 507,289.60, 760,876.80 and 133,350.40 is: 200,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,289.60 : 760,876.80 = 133,350.40 : x
  2. Step 2: Convert to fraction form
    507,289.60/760,876.80 = 133,350.40/x
  3. Step 3: Cross multiply
    507,289.60x = 760,876.80 × 133,350.40
  4. Step 4: Simplify right side
    507,289.60x = 101,463,225,630.72
  5. Step 5: Solve for x
    x = 101,463,225,630.72/507,289.60
  6. Step 6: Final answer
    x = 200,010.46

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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.