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Finding the Fourth Proportional to 382,087.70, 535,710.10 and 382,087.70

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Solution

The fourth proportional to 382,087.70, 535,710.10 and 382,087.70 is: 535,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,087.70 : 535,710.10 = 382,087.70 : x
  2. Step 2: Convert to fraction form
    382,087.70/535,710.10 = 382,087.70/x
  3. Step 3: Cross multiply
    382,087.70x = 535,710.10 × 382,087.70
  4. Step 4: Simplify right side
    382,087.70x = 204,688,239,975.77
  5. Step 5: Solve for x
    x = 204,688,239,975.77/382,087.70
  6. Step 6: Final answer
    x = 535,710.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.