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Finding the Fourth Proportional to 514,072.40, 770,878.20 and 233,445.20

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Solution

The fourth proportional to 514,072.40, 770,878.20 and 233,445.20 is: 350,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,072.40 : 770,878.20 = 233,445.20 : x
  2. Step 2: Convert to fraction form
    514,072.40/770,878.20 = 233,445.20/x
  3. Step 3: Cross multiply
    514,072.40x = 770,878.20 × 233,445.20
  4. Step 4: Simplify right side
    514,072.40x = 179,957,815,574.64
  5. Step 5: Solve for x
    x = 179,957,815,574.64/514,072.40
  6. Step 6: Final answer
    x = 350,063.17

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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.