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Finding the Fourth Proportional to 553,677.70, 830,516.55 and 473,961.55

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Solution

The fourth proportional to 553,677.70, 830,516.55 and 473,961.55 is: 710,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,677.70 : 830,516.55 = 473,961.55 : x
  2. Step 2: Convert to fraction form
    553,677.70/830,516.55 = 473,961.55/x
  3. Step 3: Cross multiply
    553,677.70x = 830,516.55 × 473,961.55
  4. Step 4: Simplify right side
    553,677.70x = 393,632,911,338.65
  5. Step 5: Solve for x
    x = 393,632,911,338.65/553,677.70
  6. Step 6: Final answer
    x = 710,942.33

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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.