Home / 1,138,916-1,571,567.64-629,549.12

Finding the Fourth Proportional to 1,138,916, 1,571,567.64 and 629,549.12

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Solution

The fourth proportional to 1,138,916, 1,571,567.64 and 629,549.12 is: 868,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,916 : 1,571,567.64 = 629,549.12 : x
  2. Step 2: Convert to fraction form
    1,138,916/1,571,567.64 = 629,549.12/x
  3. Step 3: Cross multiply
    1,138,916x = 1,571,567.64 × 629,549.12
  4. Step 4: Simplify right side
    1,138,916x = 989,379,024,782.48
  5. Step 5: Solve for x
    x = 989,379,024,782.48/1,138,916
  6. Step 6: Final answer
    x = 868,702.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.