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Finding the Fourth Proportional to 670,633.83, 925,006.23 and 455,400.23

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Solution

The fourth proportional to 670,633.83, 925,006.23 and 455,400.23 is: 628,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,633.83 : 925,006.23 = 455,400.23 : x
  2. Step 2: Convert to fraction form
    670,633.83/925,006.23 = 455,400.23/x
  3. Step 3: Cross multiply
    670,633.83x = 925,006.23 × 455,400.23
  4. Step 4: Simplify right side
    670,633.83x = 421,248,045,268.40
  5. Step 5: Solve for x
    x = 421,248,045,268.40/670,633.83
  6. Step 6: Final answer
    x = 628,134.20

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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.