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Finding the Fourth Proportional to 692,915.94, 956,884.41 and 655,177.86

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Solution

The fourth proportional to 692,915.94, 956,884.41 and 655,177.86 is: 904,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,915.94 : 956,884.41 = 655,177.86 : x
  2. Step 2: Convert to fraction form
    692,915.94/956,884.41 = 655,177.86/x
  3. Step 3: Cross multiply
    692,915.94x = 956,884.41 × 655,177.86
  4. Step 4: Simplify right side
    692,915.94x = 626,929,480,011.16
  5. Step 5: Solve for x
    x = 626,929,480,011.16/692,915.94
  6. Step 6: Final answer
    x = 904,769.89

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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.