Home / 648,679.15-973,111.59-199,437.75

Finding the Fourth Proportional to 648,679.15, 973,111.59 and 199,437.75

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Solution

The fourth proportional to 648,679.15, 973,111.59 and 199,437.75 is: 299,185.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,679.15 : 973,111.59 = 199,437.75 : x
  2. Step 2: Convert to fraction form
    648,679.15/973,111.59 = 199,437.75/x
  3. Step 3: Cross multiply
    648,679.15x = 973,111.59 × 199,437.75
  4. Step 4: Simplify right side
    648,679.15x = 194,075,181,142.97
  5. Step 5: Solve for x
    x = 194,075,181,142.97/648,679.15
  6. Step 6: Final answer
    x = 299,185.17

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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.