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Finding the Fourth Proportional to 616,166.80, 923,789.40 and 336,000.40

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Solution

The fourth proportional to 616,166.80, 923,789.40 and 336,000.40 is: 503,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,166.80 : 923,789.40 = 336,000.40 : x
  2. Step 2: Convert to fraction form
    616,166.80/923,789.40 = 336,000.40/x
  3. Step 3: Cross multiply
    616,166.80x = 923,789.40 × 336,000.40
  4. Step 4: Simplify right side
    616,166.80x = 310,393,607,915.76
  5. Step 5: Solve for x
    x = 310,393,607,915.76/616,166.80
  6. Step 6: Final answer
    x = 503,749.32

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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.