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Finding the Fourth Proportional to 3,316,818.62, 4,975,583.52 and 920,673.38

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Solution

The fourth proportional to 3,316,818.62, 4,975,583.52 and 920,673.38 is: 1,381,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316,818.62 : 4,975,583.52 = 920,673.38 : x
  2. Step 2: Convert to fraction form
    3,316,818.62/4,975,583.52 = 920,673.38/x
  3. Step 3: Cross multiply
    3,316,818.62x = 4,975,583.52 × 920,673.38
  4. Step 4: Simplify right side
    3,316,818.62x = 4,580,887,296,830.70
  5. Step 5: Solve for x
    x = 4,580,887,296,830.70/3,316,818.62
  6. Step 6: Final answer
    x = 1,381,108.77

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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.