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Finding the Fourth Proportional to 457,293.42, 631,065.42 and 256,089.42

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Solution

The fourth proportional to 457,293.42, 631,065.42 and 256,089.42 is: 353,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,293.42 : 631,065.42 = 256,089.42 : x
  2. Step 2: Convert to fraction form
    457,293.42/631,065.42 = 256,089.42/x
  3. Step 3: Cross multiply
    457,293.42x = 631,065.42 × 256,089.42
  4. Step 4: Simplify right side
    457,293.42x = 161,609,177,389.86
  5. Step 5: Solve for x
    x = 161,609,177,389.86/457,293.42
  6. Step 6: Final answer
    x = 353,403.68

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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.