Home / 939,256.75-1,408,943.75-265,389.81

Finding the Fourth Proportional to 939,256.75, 1,408,943.75 and 265,389.81

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Solution

The fourth proportional to 939,256.75, 1,408,943.75 and 265,389.81 is: 398,101.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,256.75 : 1,408,943.75 = 265,389.81 : x
  2. Step 2: Convert to fraction form
    939,256.75/1,408,943.75 = 265,389.81/x
  3. Step 3: Cross multiply
    939,256.75x = 1,408,943.75 × 265,389.81
  4. Step 4: Simplify right side
    939,256.75x = 373,919,314,113.19
  5. Step 5: Solve for x
    x = 373,919,314,113.19/939,256.75
  6. Step 6: Final answer
    x = 398,101.28

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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.