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Finding the Fourth Proportional to 626,352.68, 939,495.54 and 221,516.84

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Solution

The fourth proportional to 626,352.68, 939,495.54 and 221,516.84 is: 332,263.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,352.68 : 939,495.54 = 221,516.84 : x
  2. Step 2: Convert to fraction form
    626,352.68/939,495.54 = 221,516.84/x
  3. Step 3: Cross multiply
    626,352.68x = 939,495.54 × 221,516.84
  4. Step 4: Simplify right side
    626,352.68x = 208,114,083,214.89
  5. Step 5: Solve for x
    x = 208,114,083,214.89/626,352.68
  6. Step 6: Final answer
    x = 332,263.42

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1.5x scale

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.