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Finding the Fourth Proportional to 341,643.60, 512,465.40 and 152,103.60

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Solution

The fourth proportional to 341,643.60, 512,465.40 and 152,103.60 is: 228,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,643.60 : 512,465.40 = 152,103.60 : x
  2. Step 2: Convert to fraction form
    341,643.60/512,465.40 = 152,103.60/x
  3. Step 3: Cross multiply
    341,643.60x = 512,465.40 × 152,103.60
  4. Step 4: Simplify right side
    341,643.60x = 77,947,832,215.44
  5. Step 5: Solve for x
    x = 77,947,832,215.44/341,643.60
  6. Step 6: Final answer
    x = 228,155.40

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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.