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Finding the Fourth Proportional to 649,812.96, 895,860 and 455,957.28

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Solution

The fourth proportional to 649,812.96, 895,860 and 455,957.28 is: 628,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,812.96 : 895,860 = 455,957.28 : x
  2. Step 2: Convert to fraction form
    649,812.96/895,860 = 455,957.28/x
  3. Step 3: Cross multiply
    649,812.96x = 895,860 × 455,957.28
  4. Step 4: Simplify right side
    649,812.96x = 408,473,888,860.80
  5. Step 5: Solve for x
    x = 408,473,888,860.80/649,812.96
  6. Step 6: Final answer
    x = 628,602.25

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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.