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Finding the Fourth Proportional to 407,245.32, 562,328.73 and 254,461.50

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Solution

The fourth proportional to 407,245.32, 562,328.73 and 254,461.50 is: 351,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,245.32 : 562,328.73 = 254,461.50 : x
  2. Step 2: Convert to fraction form
    407,245.32/562,328.73 = 254,461.50/x
  3. Step 3: Cross multiply
    407,245.32x = 562,328.73 × 254,461.50
  4. Step 4: Simplify right side
    407,245.32x = 143,091,012,128.90
  5. Step 5: Solve for x
    x = 143,091,012,128.90/407,245.32
  6. Step 6: Final answer
    x = 351,363.18

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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.