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Finding the Fourth Proportional to 325,367.70, 488,051.55 and 286,001.70

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Solution

The fourth proportional to 325,367.70, 488,051.55 and 286,001.70 is: 429,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,367.70 : 488,051.55 = 286,001.70 : x
  2. Step 2: Convert to fraction form
    325,367.70/488,051.55 = 286,001.70/x
  3. Step 3: Cross multiply
    325,367.70x = 488,051.55 × 286,001.70
  4. Step 4: Simplify right side
    325,367.70x = 139,583,572,987.64
  5. Step 5: Solve for x
    x = 139,583,572,987.64/325,367.70
  6. Step 6: Final answer
    x = 429,002.55

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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.