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Finding the Fourth Proportional to 363,868.20, 545,802.30 and 325,814.40

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Solution

The fourth proportional to 363,868.20, 545,802.30 and 325,814.40 is: 488,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,868.20 : 545,802.30 = 325,814.40 : x
  2. Step 2: Convert to fraction form
    363,868.20/545,802.30 = 325,814.40/x
  3. Step 3: Cross multiply
    363,868.20x = 545,802.30 × 325,814.40
  4. Step 4: Simplify right side
    363,868.20x = 177,830,248,893.12
  5. Step 5: Solve for x
    x = 177,830,248,893.12/363,868.20
  6. Step 6: Final answer
    x = 488,721.60

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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.