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Finding the Fourth Proportional to 663,166.08, 993,916.80 and 522,368.64

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Solution

The fourth proportional to 663,166.08, 993,916.80 and 522,368.64 is: 782,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,166.08 : 993,916.80 = 522,368.64 : x
  2. Step 2: Convert to fraction form
    663,166.08/993,916.80 = 522,368.64/x
  3. Step 3: Cross multiply
    663,166.08x = 993,916.80 × 522,368.64
  4. Step 4: Simplify right side
    663,166.08x = 519,190,967,089.15
  5. Step 5: Solve for x
    x = 519,190,967,089.15/663,166.08
  6. Step 6: Final answer
    x = 782,897.35

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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.