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Finding the Fourth Proportional to 338,340.99, 507,510.55 and 151,221.27

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Solution

The fourth proportional to 338,340.99, 507,510.55 and 151,221.27 is: 226,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,340.99 : 507,510.55 = 151,221.27 : x
  2. Step 2: Convert to fraction form
    338,340.99/507,510.55 = 151,221.27/x
  3. Step 3: Cross multiply
    338,340.99x = 507,510.55 × 151,221.27
  4. Step 4: Simplify right side
    338,340.99x = 76,746,389,909.40
  5. Step 5: Solve for x
    x = 76,746,389,909.40/338,340.99
  6. Step 6: Final answer
    x = 226,831.49

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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.