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Finding the Fourth Proportional to 692,902.20, 956,865.34 and 655,164.16

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Solution

The fourth proportional to 692,902.20, 956,865.34 and 655,164.16 is: 904,750.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,902.20 : 956,865.34 = 655,164.16 : x
  2. Step 2: Convert to fraction form
    692,902.20/956,865.34 = 655,164.16/x
  3. Step 3: Cross multiply
    692,902.20x = 956,865.34 × 655,164.16
  4. Step 4: Simplify right side
    692,902.20x = 626,903,876,714.21
  5. Step 5: Solve for x
    x = 626,903,876,714.21/692,902.20
  6. Step 6: Final answer
    x = 904,750.88

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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.