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Finding the Fourth Proportional to 586,554.75, 877,879.32 and 443,612.43

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Solution

The fourth proportional to 586,554.75, 877,879.32 and 443,612.43 is: 663,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,554.75 : 877,879.32 = 443,612.43 : x
  2. Step 2: Convert to fraction form
    586,554.75/877,879.32 = 443,612.43/x
  3. Step 3: Cross multiply
    586,554.75x = 877,879.32 × 443,612.43
  4. Step 4: Simplify right side
    586,554.75x = 389,438,176,728.40
  5. Step 5: Solve for x
    x = 389,438,176,728.40/586,554.75
  6. Step 6: Final answer
    x = 663,941.73

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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.