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Finding the Fourth Proportional to 628,853,291.40, 943,279,937.10 and 628,853,291.40

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Solution

The fourth proportional to 628,853,291.40, 943,279,937.10 and 628,853,291.40 is: 943,279,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,853,291.40 : 943,279,937.10 = 628,853,291.40 : x
  2. Step 2: Convert to fraction form
    628,853,291.40/943,279,937.10 = 628,853,291.40/x
  3. Step 3: Cross multiply
    628,853,291.40x = 943,279,937.10 × 628,853,291.40
  4. Step 4: Simplify right side
    628,853,291.40x = 593,184,693,156,919,936
  5. Step 5: Solve for x
    x = 593,184,693,156,919,936/628,853,291.40
  6. Step 6: Final answer
    x = 943,279,937.10

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Double scale
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Similar ratio
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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.