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Finding the Fourth Proportional to 435,899.16, 601,809.21 and 345,619.80

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Solution

The fourth proportional to 435,899.16, 601,809.21 and 345,619.80 is: 477,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,899.16 : 601,809.21 = 345,619.80 : x
  2. Step 2: Convert to fraction form
    435,899.16/601,809.21 = 345,619.80/x
  3. Step 3: Cross multiply
    435,899.16x = 601,809.21 × 345,619.80
  4. Step 4: Simplify right side
    435,899.16x = 207,997,178,798.36
  5. Step 5: Solve for x
    x = 207,997,178,798.36/435,899.16
  6. Step 6: Final answer
    x = 477,168.11

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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.