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Finding the Fourth Proportional to 633,961,859.20, 885,732,617.60 and 633,961,859.20

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Solution

The fourth proportional to 633,961,859.20, 885,732,617.60 and 633,961,859.20 is: 885,732,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,961,859.20 : 885,732,617.60 = 633,961,859.20 : x
  2. Step 2: Convert to fraction form
    633,961,859.20/885,732,617.60 = 633,961,859.20/x
  3. Step 3: Cross multiply
    633,961,859.20x = 885,732,617.60 × 633,961,859.20
  4. Step 4: Simplify right side
    633,961,859.20x = 561,520,697,007,778,688
  5. Step 5: Solve for x
    x = 561,520,697,007,778,688/633,961,859.20
  6. Step 6: Final answer
    x = 885,732,617.60

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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.