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Finding the Fourth Proportional to 348,043.60, 522,065.40 and 327,307.60

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Solution

The fourth proportional to 348,043.60, 522,065.40 and 327,307.60 is: 490,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,043.60 : 522,065.40 = 327,307.60 : x
  2. Step 2: Convert to fraction form
    348,043.60/522,065.40 = 327,307.60/x
  3. Step 3: Cross multiply
    348,043.60x = 522,065.40 × 327,307.60
  4. Step 4: Simplify right side
    348,043.60x = 170,875,973,117.04
  5. Step 5: Solve for x
    x = 170,875,973,117.04/348,043.60
  6. Step 6: Final answer
    x = 490,961.40

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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.