Home / 863,639.18-1,293,723.85-430,050.38

Finding the Fourth Proportional to 863,639.18, 1,293,723.85 and 430,050.38

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Solution

The fourth proportional to 863,639.18, 1,293,723.85 and 430,050.38 is: 644,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,639.18 : 1,293,723.85 = 430,050.38 : x
  2. Step 2: Convert to fraction form
    863,639.18/1,293,723.85 = 430,050.38/x
  3. Step 3: Cross multiply
    863,639.18x = 1,293,723.85 × 430,050.38
  4. Step 4: Simplify right side
    863,639.18x = 556,366,433,307.56
  5. Step 5: Solve for x
    x = 556,366,433,307.56/863,639.18
  6. Step 6: Final answer
    x = 644,211.66

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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.