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Finding the Fourth Proportional to 295,957,438.30, 415,020,658.10 and 295,957,438.30

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Solution

The fourth proportional to 295,957,438.30, 415,020,658.10 and 295,957,438.30 is: 415,020,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,957,438.30 : 415,020,658.10 = 295,957,438.30 : x
  2. Step 2: Convert to fraction form
    295,957,438.30/415,020,658.10 = 295,957,438.30/x
  3. Step 3: Cross multiply
    295,957,438.30x = 415,020,658.10 × 295,957,438.30
  4. Step 4: Simplify right side
    295,957,438.30x = 122,828,450,812,856,160
  5. Step 5: Solve for x
    x = 122,828,450,812,856,160/295,957,438.30
  6. Step 6: Final answer
    x = 415,020,658.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.