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Finding the Fourth Proportional to 423,521.28, 584,416.32 and 253,751.04

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Solution

The fourth proportional to 423,521.28, 584,416.32 and 253,751.04 is: 350,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,521.28 : 584,416.32 = 253,751.04 : x
  2. Step 2: Convert to fraction form
    423,521.28/584,416.32 = 253,751.04/x
  3. Step 3: Cross multiply
    423,521.28x = 584,416.32 × 253,751.04
  4. Step 4: Simplify right side
    423,521.28x = 148,296,248,992.97
  5. Step 5: Solve for x
    x = 148,296,248,992.97/423,521.28
  6. Step 6: Final answer
    x = 350,150.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.