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Finding the Fourth Proportional to 616,806.25, 850,931.98 and 412,922.85

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Solution

The fourth proportional to 616,806.25, 850,931.98 and 412,922.85 is: 569,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,806.25 : 850,931.98 = 412,922.85 : x
  2. Step 2: Convert to fraction form
    616,806.25/850,931.98 = 412,922.85/x
  3. Step 3: Cross multiply
    616,806.25x = 850,931.98 × 412,922.85
  4. Step 4: Simplify right side
    616,806.25x = 351,369,258,337.74
  5. Step 5: Solve for x
    x = 351,369,258,337.74/616,806.25
  6. Step 6: Final answer
    x = 569,659.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.