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Finding the Fourth Proportional to 529,510.46, 730,706.55 and 303,112.22

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Solution

The fourth proportional to 529,510.46, 730,706.55 and 303,112.22 is: 418,284.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,510.46 : 730,706.55 = 303,112.22 : x
  2. Step 2: Convert to fraction form
    529,510.46/730,706.55 = 303,112.22/x
  3. Step 3: Cross multiply
    529,510.46x = 730,706.55 × 303,112.22
  4. Step 4: Simplify right side
    529,510.46x = 221,486,084,539.04
  5. Step 5: Solve for x
    x = 221,486,084,539.04/529,510.46
  6. Step 6: Final answer
    x = 418,284.63

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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.