Home / 341,648.40-471,465-190,742.16

Finding the Fourth Proportional to 341,648.40, 471,465 and 190,742.16

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Solution

The fourth proportional to 341,648.40, 471,465 and 190,742.16 is: 263,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,648.40 : 471,465 = 190,742.16 : x
  2. Step 2: Convert to fraction form
    341,648.40/471,465 = 190,742.16/x
  3. Step 3: Cross multiply
    341,648.40x = 471,465 × 190,742.16
  4. Step 4: Simplify right side
    341,648.40x = 89,928,252,464.40
  5. Step 5: Solve for x
    x = 89,928,252,464.40/341,648.40
  6. Step 6: Final answer
    x = 263,218.71

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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.