Home / 319,464.18-440,911.89-190,408.50

Finding the Fourth Proportional to 319,464.18, 440,911.89 and 190,408.50

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Solution

The fourth proportional to 319,464.18, 440,911.89 and 190,408.50 is: 262,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,464.18 : 440,911.89 = 190,408.50 : x
  2. Step 2: Convert to fraction form
    319,464.18/440,911.89 = 190,408.50/x
  3. Step 3: Cross multiply
    319,464.18x = 440,911.89 × 190,408.50
  4. Step 4: Simplify right side
    319,464.18x = 83,953,371,607.07
  5. Step 5: Solve for x
    x = 83,953,371,607.07/319,464.18
  6. Step 6: Final answer
    x = 262,794.32

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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.