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Finding the Fourth Proportional to 898,679,905.90, 1,348,019,858.85 and 735,421,230.70

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Solution

The fourth proportional to 898,679,905.90, 1,348,019,858.85 and 735,421,230.70 is: 1,103,131,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,679,905.90 : 1,348,019,858.85 = 735,421,230.70 : x
  2. Step 2: Convert to fraction form
    898,679,905.90/1,348,019,858.85 = 735,421,230.70/x
  3. Step 3: Cross multiply
    898,679,905.90x = 1,348,019,858.85 × 735,421,230.70
  4. Step 4: Simplify right side
    898,679,905.90x = 991,362,423,603,507,328
  5. Step 5: Solve for x
    x = 991,362,423,603,507,328/898,679,905.90
  6. Step 6: Final answer
    x = 1,103,131,846.05

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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.