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Finding the Fourth Proportional to 523,632.79, 723,039.38 and 426,851.83

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Solution

The fourth proportional to 523,632.79, 723,039.38 and 426,851.83 is: 589,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,632.79 : 723,039.38 = 426,851.83 : x
  2. Step 2: Convert to fraction form
    523,632.79/723,039.38 = 426,851.83/x
  3. Step 3: Cross multiply
    523,632.79x = 723,039.38 × 426,851.83
  4. Step 4: Simplify right side
    523,632.79x = 308,630,682,515.07
  5. Step 5: Solve for x
    x = 308,630,682,515.07/523,632.79
  6. Step 6: Final answer
    x = 589,402.90

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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.