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Finding the Fourth Proportional to 382,393.62, 527,681.52 and 212,624.10

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Solution

The fourth proportional to 382,393.62, 527,681.52 and 212,624.10 is: 293,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,393.62 : 527,681.52 = 212,624.10 : x
  2. Step 2: Convert to fraction form
    382,393.62/527,681.52 = 212,624.10/x
  3. Step 3: Cross multiply
    382,393.62x = 527,681.52 × 212,624.10
  4. Step 4: Simplify right side
    382,393.62x = 112,197,808,276.63
  5. Step 5: Solve for x
    x = 112,197,808,276.63/382,393.62
  6. Step 6: Final answer
    x = 293,409.21

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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.