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Finding the Fourth Proportional to 570,666.96, 856,315.48 and 318,089.62

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Solution

The fourth proportional to 570,666.96, 856,315.48 and 318,089.62 is: 477,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,666.96 : 856,315.48 = 318,089.62 : x
  2. Step 2: Convert to fraction form
    570,666.96/856,315.48 = 318,089.62/x
  3. Step 3: Cross multiply
    570,666.96x = 856,315.48 × 318,089.62
  4. Step 4: Simplify right side
    570,666.96x = 272,385,065,633.32
  5. Step 5: Solve for x
    x = 272,385,065,633.32/570,666.96
  6. Step 6: Final answer
    x = 477,310.03

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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.