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Finding the Fourth Proportional to 636,655.16, 878,584.57 and 350,197.04

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Solution

The fourth proportional to 636,655.16, 878,584.57 and 350,197.04 is: 483,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,655.16 : 878,584.57 = 350,197.04 : x
  2. Step 2: Convert to fraction form
    636,655.16/878,584.57 = 350,197.04/x
  3. Step 3: Cross multiply
    636,655.16x = 878,584.57 × 350,197.04
  4. Step 4: Simplify right side
    636,655.16x = 307,677,715,803.67
  5. Step 5: Solve for x
    x = 307,677,715,803.67/636,655.16
  6. Step 6: Final answer
    x = 483,272.16

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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.