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Finding the Fourth Proportional to 422,130.13, 583,450.80 and 373,387.04

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Solution

The fourth proportional to 422,130.13, 583,450.80 and 373,387.04 is: 516,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,130.13 : 583,450.80 = 373,387.04 : x
  2. Step 2: Convert to fraction form
    422,130.13/583,450.80 = 373,387.04/x
  3. Step 3: Cross multiply
    422,130.13x = 583,450.80 × 373,387.04
  4. Step 4: Simplify right side
    422,130.13x = 217,852,966,709.07
  5. Step 5: Solve for x
    x = 217,852,966,709.07/422,130.13
  6. Step 6: Final answer
    x = 516,080.11

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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.