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Finding the Fourth Proportional to 536,585.61, 740,326.67 and 321,647.25

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Solution

The fourth proportional to 536,585.61, 740,326.67 and 321,647.25 is: 443,776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,585.61 : 740,326.67 = 321,647.25 : x
  2. Step 2: Convert to fraction form
    536,585.61/740,326.67 = 321,647.25/x
  3. Step 3: Cross multiply
    536,585.61x = 740,326.67 × 321,647.25
  4. Step 4: Simplify right side
    536,585.61x = 238,124,035,898.92
  5. Step 5: Solve for x
    x = 238,124,035,898.92/536,585.61
  6. Step 6: Final answer
    x = 443,776.41

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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.