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Finding the Fourth Proportional to 628,503,977.70, 942,755,966.55 and 628,503,977.70

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Solution

The fourth proportional to 628,503,977.70, 942,755,966.55 and 628,503,977.70 is: 942,755,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,503,977.70 : 942,755,966.55 = 628,503,977.70 : x
  2. Step 2: Convert to fraction form
    628,503,977.70/942,755,966.55 = 628,503,977.70/x
  3. Step 3: Cross multiply
    628,503,977.70x = 942,755,966.55 × 628,503,977.70
  4. Step 4: Simplify right side
    628,503,977.70x = 592,525,874,977,083,136
  5. Step 5: Solve for x
    x = 592,525,874,977,083,136/628,503,977.70
  6. Step 6: Final answer
    x = 942,755,966.55

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Double scale
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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.