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Finding the Fourth Proportional to 238,658,660.40, 335,029,117.20 and 238,658,660.40

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Solution

The fourth proportional to 238,658,660.40, 335,029,117.20 and 238,658,660.40 is: 335,029,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,658,660.40 : 335,029,117.20 = 238,658,660.40 : x
  2. Step 2: Convert to fraction form
    238,658,660.40/335,029,117.20 = 238,658,660.40/x
  3. Step 3: Cross multiply
    238,658,660.40x = 335,029,117.20 × 238,658,660.40
  4. Step 4: Simplify right side
    238,658,660.40x = 79,957,600,305,946,592
  5. Step 5: Solve for x
    x = 79,957,600,305,946,592/238,658,660.40
  6. Step 6: Final answer
    x = 335,029,117.20

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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.