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Finding the Fourth Proportional to 621,950.40, 932,929.92 and 266,664.96

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Solution

The fourth proportional to 621,950.40, 932,929.92 and 266,664.96 is: 399,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,950.40 : 932,929.92 = 266,664.96 : x
  2. Step 2: Convert to fraction form
    621,950.40/932,929.92 = 266,664.96/x
  3. Step 3: Cross multiply
    621,950.40x = 932,929.92 × 266,664.96
  4. Step 4: Simplify right side
    621,950.40x = 248,779,719,799.60
  5. Step 5: Solve for x
    x = 248,779,719,799.60/621,950.40
  6. Step 6: Final answer
    x = 399,999.29

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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.