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Finding the Fourth Proportional to 640,529.57, 883,840.51 and 364,894.67

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Solution

The fourth proportional to 640,529.57, 883,840.51 and 364,894.67 is: 503,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,529.57 : 883,840.51 = 364,894.67 : x
  2. Step 2: Convert to fraction form
    640,529.57/883,840.51 = 364,894.67/x
  3. Step 3: Cross multiply
    640,529.57x = 883,840.51 × 364,894.67
  4. Step 4: Simplify right side
    640,529.57x = 322,508,693,894.80
  5. Step 5: Solve for x
    x = 322,508,693,894.80/640,529.57
  6. Step 6: Final answer
    x = 503,503.21

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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.