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Finding the Fourth Proportional to 341,643.60, 512,465.40 and 236,667.60

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Solution

The fourth proportional to 341,643.60, 512,465.40 and 236,667.60 is: 355,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,643.60 : 512,465.40 = 236,667.60 : x
  2. Step 2: Convert to fraction form
    341,643.60/512,465.40 = 236,667.60/x
  3. Step 3: Cross multiply
    341,643.60x = 512,465.40 × 236,667.60
  4. Step 4: Simplify right side
    341,643.60x = 121,283,956,301.04
  5. Step 5: Solve for x
    x = 121,283,956,301.04/341,643.60
  6. Step 6: Final answer
    x = 355,001.40

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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.