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Finding the Fourth Proportional to 480,185.70, 720,066.38 and 255,492.87

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Solution

The fourth proportional to 480,185.70, 720,066.38 and 255,492.87 is: 383,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,185.70 : 720,066.38 = 255,492.87 : x
  2. Step 2: Convert to fraction form
    480,185.70/720,066.38 = 255,492.87/x
  3. Step 3: Cross multiply
    480,185.70x = 720,066.38 × 255,492.87
  4. Step 4: Simplify right side
    480,185.70x = 183,971,824,739.25
  5. Step 5: Solve for x
    x = 183,971,824,739.25/480,185.70
  6. Step 6: Final answer
    x = 383,126.41

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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.