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Finding the Fourth Proportional to 426,763.44, 640,240.40 and 160,526.16

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Solution

The fourth proportional to 426,763.44, 640,240.40 and 160,526.16 is: 240,825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,763.44 : 640,240.40 = 160,526.16 : x
  2. Step 2: Convert to fraction form
    426,763.44/640,240.40 = 160,526.16/x
  3. Step 3: Cross multiply
    426,763.44x = 640,240.40 × 160,526.16
  4. Step 4: Simplify right side
    426,763.44x = 102,775,332,888.86
  5. Step 5: Solve for x
    x = 102,775,332,888.86/426,763.44
  6. Step 6: Final answer
    x = 240,825.06

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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.