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Finding the Fourth Proportional to 613,479,744,000.40, 920,219,616,000.55 and 613,479,744,000.40

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Solution

The fourth proportional to 613,479,744,000.40, 920,219,616,000.55 and 613,479,744,000.40 is: 920,219,616,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,479,744,000.40 : 920,219,616,000.55 = 613,479,744,000.40 : x
  2. Step 2: Convert to fraction form
    613,479,744,000.40/920,219,616,000.55 = 613,479,744,000.40/x
  3. Step 3: Cross multiply
    613,479,744,000.40x = 920,219,616,000.55 × 613,479,744,000.40
  4. Step 4: Simplify right side
    613,479,744,000.40x = 564,536,094,448,163,886,202,880
  5. Step 5: Solve for x
    x = 564,536,094,448,163,886,202,880/613,479,744,000.40
  6. Step 6: Final answer
    x = 920,219,616,000.55

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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.