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Finding the Fourth Proportional to 264,085.60, 395,590.80 and 163,938.40

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Solution

The fourth proportional to 264,085.60, 395,590.80 and 163,938.40 is: 245,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,085.60 : 395,590.80 = 163,938.40 : x
  2. Step 2: Convert to fraction form
    264,085.60/395,590.80 = 163,938.40/x
  3. Step 3: Cross multiply
    264,085.60x = 395,590.80 × 163,938.40
  4. Step 4: Simplify right side
    264,085.60x = 64,852,522,806.72
  5. Step 5: Solve for x
    x = 64,852,522,806.72/264,085.60
  6. Step 6: Final answer
    x = 245,573.87

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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.