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Finding the Fourth Proportional to 382,045.70, 573,068.55 and 340,711.40

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Solution

The fourth proportional to 382,045.70, 573,068.55 and 340,711.40 is: 511,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,045.70 : 573,068.55 = 340,711.40 : x
  2. Step 2: Convert to fraction form
    382,045.70/573,068.55 = 340,711.40/x
  3. Step 3: Cross multiply
    382,045.70x = 573,068.55 × 340,711.40
  4. Step 4: Simplify right side
    382,045.70x = 195,250,987,966.47
  5. Step 5: Solve for x
    x = 195,250,987,966.47/382,045.70
  6. Step 6: Final answer
    x = 511,067.10

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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.