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Finding the Fourth Proportional to 529,858.76, 731,175.54 and 303,518.84

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Solution

The fourth proportional to 529,858.76, 731,175.54 and 303,518.84 is: 418,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,858.76 : 731,175.54 = 303,518.84 : x
  2. Step 2: Convert to fraction form
    529,858.76/731,175.54 = 303,518.84/x
  3. Step 3: Cross multiply
    529,858.76x = 731,175.54 × 303,518.84
  4. Step 4: Simplify right side
    529,858.76x = 221,925,551,737.17
  5. Step 5: Solve for x
    x = 221,925,551,737.17/529,858.76
  6. Step 6: Final answer
    x = 418,839.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.