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Finding the Fourth Proportional to 5,674,768.90, 8,512,153.35 and 2,688,784.90

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Solution

The fourth proportional to 5,674,768.90, 8,512,153.35 and 2,688,784.90 is: 4,033,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674,768.90 : 8,512,153.35 = 2,688,784.90 : x
  2. Step 2: Convert to fraction form
    5,674,768.90/8,512,153.35 = 2,688,784.90/x
  3. Step 3: Cross multiply
    5,674,768.90x = 8,512,153.35 × 2,688,784.90
  4. Step 4: Simplify right side
    5,674,768.90x = 22,887,349,393,964.41
  5. Step 5: Solve for x
    x = 22,887,349,393,964.41/5,674,768.90
  6. Step 6: Final answer
    x = 4,033,177.35

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Similar ratio
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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.