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Finding the Fourth Proportional to 747,181,985.70, 1,118,757,439.35 and 747,181,985.70

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Solution

The fourth proportional to 747,181,985.70, 1,118,757,439.35 and 747,181,985.70 is: 1,118,757,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,181,985.70 : 1,118,757,439.35 = 747,181,985.70 : x
  2. Step 2: Convert to fraction form
    747,181,985.70/1,118,757,439.35 = 747,181,985.70/x
  3. Step 3: Cross multiply
    747,181,985.70x = 1,118,757,439.35 × 747,181,985.70
  4. Step 4: Simplify right side
    747,181,985.70x = 835,915,405,050,180,352
  5. Step 5: Solve for x
    x = 835,915,405,050,180,352/747,181,985.70
  6. Step 6: Final answer
    x = 1,118,757,439.35

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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.