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Finding the Fourth Proportional to 407,998.16, 562,802.88 and 254,770.28

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Solution

The fourth proportional to 407,998.16, 562,802.88 and 254,770.28 is: 351,436.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,998.16 : 562,802.88 = 254,770.28 : x
  2. Step 2: Convert to fraction form
    407,998.16/562,802.88 = 254,770.28/x
  3. Step 3: Cross multiply
    407,998.16x = 562,802.88 × 254,770.28
  4. Step 4: Simplify right side
    407,998.16x = 143,385,447,322.41
  5. Step 5: Solve for x
    x = 143,385,447,322.41/407,998.16
  6. Step 6: Final answer
    x = 351,436.50

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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.