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Finding the Fourth Proportional to 346,728.40, 520,092.60 and 325,733.20

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Solution

The fourth proportional to 346,728.40, 520,092.60 and 325,733.20 is: 488,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,728.40 : 520,092.60 = 325,733.20 : x
  2. Step 2: Convert to fraction form
    346,728.40/520,092.60 = 325,733.20/x
  3. Step 3: Cross multiply
    346,728.40x = 520,092.60 × 325,733.20
  4. Step 4: Simplify right side
    346,728.40x = 169,411,426,894.32
  5. Step 5: Solve for x
    x = 169,411,426,894.32/346,728.40
  6. Step 6: Final answer
    x = 488,599.80

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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.