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Finding the Fourth Proportional to 688,391.75, 946,611.60 and 597,588.93

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Solution

The fourth proportional to 688,391.75, 946,611.60 and 597,588.93 is: 821,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,391.75 : 946,611.60 = 597,588.93 : x
  2. Step 2: Convert to fraction form
    688,391.75/946,611.60 = 597,588.93/x
  3. Step 3: Cross multiply
    688,391.75x = 946,611.60 × 597,588.93
  4. Step 4: Simplify right side
    688,391.75x = 565,684,613,169.59
  5. Step 5: Solve for x
    x = 565,684,613,169.59/688,391.75
  6. Step 6: Final answer
    x = 821,748.11

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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.