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Finding the Fourth Proportional to 613,199.26, 845,491.01 and 419,700.18

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Solution

The fourth proportional to 613,199.26, 845,491.01 and 419,700.18 is: 578,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,199.26 : 845,491.01 = 419,700.18 : x
  2. Step 2: Convert to fraction form
    613,199.26/845,491.01 = 419,700.18/x
  3. Step 3: Cross multiply
    613,199.26x = 845,491.01 × 419,700.18
  4. Step 4: Simplify right side
    613,199.26x = 354,852,732,518.29
  5. Step 5: Solve for x
    x = 354,852,732,518.29/613,199.26
  6. Step 6: Final answer
    x = 578,690.74

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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.