Home / 317,763.28-438,330.30-190,365.08

Finding the Fourth Proportional to 317,763.28, 438,330.30 and 190,365.08

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Solution

The fourth proportional to 317,763.28, 438,330.30 and 190,365.08 is: 262,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,763.28 : 438,330.30 = 190,365.08 : x
  2. Step 2: Convert to fraction form
    317,763.28/438,330.30 = 190,365.08/x
  3. Step 3: Cross multiply
    317,763.28x = 438,330.30 × 190,365.08
  4. Step 4: Simplify right side
    317,763.28x = 83,442,782,625.92
  5. Step 5: Solve for x
    x = 83,442,782,625.92/317,763.28
  6. Step 6: Final answer
    x = 262,594.16

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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.