Home / 879,616.09-1,214,000.75-557,356.37

Finding the Fourth Proportional to 879,616.09, 1,214,000.75 and 557,356.37

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Solution

The fourth proportional to 879,616.09, 1,214,000.75 and 557,356.37 is: 769,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,616.09 : 1,214,000.75 = 557,356.37 : x
  2. Step 2: Convert to fraction form
    879,616.09/1,214,000.75 = 557,356.37/x
  3. Step 3: Cross multiply
    879,616.09x = 1,214,000.75 × 557,356.37
  4. Step 4: Simplify right side
    879,616.09x = 676,631,048,410.50
  5. Step 5: Solve for x
    x = 676,631,048,410.50/879,616.09
  6. Step 6: Final answer
    x = 769,234.51

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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.