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Finding the Fourth Proportional to 528,456,000.20, 792,684,000.30 and 528,456,000.20

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Solution

The fourth proportional to 528,456,000.20, 792,684,000.30 and 528,456,000.20 is: 792,684,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,456,000.20 : 792,684,000.30 = 528,456,000.20 : x
  2. Step 2: Convert to fraction form
    528,456,000.20/792,684,000.30 = 528,456,000.20/x
  3. Step 3: Cross multiply
    528,456,000.20x = 792,684,000.30 × 528,456,000.20
  4. Step 4: Simplify right side
    528,456,000.20x = 418,898,616,221,073,536
  5. Step 5: Solve for x
    x = 418,898,616,221,073,536/528,456,000.20
  6. Step 6: Final answer
    x = 792,684,000.30

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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.