Home / 317,630.16-438,343.92-190,303.02

Finding the Fourth Proportional to 317,630.16, 438,343.92 and 190,303.02

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Solution

The fourth proportional to 317,630.16, 438,343.92 and 190,303.02 is: 262,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,630.16 : 438,343.92 = 190,303.02 : x
  2. Step 2: Convert to fraction form
    317,630.16/438,343.92 = 190,303.02/x
  3. Step 3: Cross multiply
    317,630.16x = 438,343.92 × 190,303.02
  4. Step 4: Simplify right side
    317,630.16x = 83,418,171,774.64
  5. Step 5: Solve for x
    x = 83,418,171,774.64/317,630.16
  6. Step 6: Final answer
    x = 262,626.73

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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.