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Finding the Fourth Proportional to 999,649.45, 1,496,364.54 and 543,099.08

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Solution

The fourth proportional to 999,649.45, 1,496,364.54 and 543,099.08 is: 812,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,649.45 : 1,496,364.54 = 543,099.08 : x
  2. Step 2: Convert to fraction form
    999,649.45/1,496,364.54 = 543,099.08/x
  3. Step 3: Cross multiply
    999,649.45x = 1,496,364.54 × 543,099.08
  4. Step 4: Simplify right side
    999,649.45x = 812,674,198,305.86
  5. Step 5: Solve for x
    x = 812,674,198,305.86/999,649.45
  6. Step 6: Final answer
    x = 812,959.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.