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Finding the Fourth Proportional to 355,751.60, 533,627.40 and 315,316.40

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Solution

The fourth proportional to 355,751.60, 533,627.40 and 315,316.40 is: 472,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,751.60 : 533,627.40 = 315,316.40 : x
  2. Step 2: Convert to fraction form
    355,751.60/533,627.40 = 315,316.40/x
  3. Step 3: Cross multiply
    355,751.60x = 533,627.40 × 315,316.40
  4. Step 4: Simplify right side
    355,751.60x = 168,261,470,709.36
  5. Step 5: Solve for x
    x = 168,261,470,709.36/355,751.60
  6. Step 6: Final answer
    x = 472,974.60

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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.