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Finding the Fourth Proportional to 573,051.23, 790,810.86 and 318,402.42

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Solution

The fourth proportional to 573,051.23, 790,810.86 and 318,402.42 is: 439,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,051.23 : 790,810.86 = 318,402.42 : x
  2. Step 2: Convert to fraction form
    573,051.23/790,810.86 = 318,402.42/x
  3. Step 3: Cross multiply
    573,051.23x = 790,810.86 × 318,402.42
  4. Step 4: Simplify right side
    573,051.23x = 251,796,091,586.28
  5. Step 5: Solve for x
    x = 251,796,091,586.28/573,051.23
  6. Step 6: Final answer
    x = 439,395.43

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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.