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Finding the Fourth Proportional to 347,632.20, 520,526.70 and 273,904.20

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Solution

The fourth proportional to 347,632.20, 520,526.70 and 273,904.20 is: 410,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,632.20 : 520,526.70 = 273,904.20 : x
  2. Step 2: Convert to fraction form
    347,632.20/520,526.70 = 273,904.20/x
  3. Step 3: Cross multiply
    347,632.20x = 520,526.70 × 273,904.20
  4. Step 4: Simplify right side
    347,632.20x = 142,574,449,342.14
  5. Step 5: Solve for x
    x = 142,574,449,342.14/347,632.20
  6. Step 6: Final answer
    x = 410,130.16

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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.