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Finding the Fourth Proportional to 556,404.40, 836,356.20 and 545,906.80

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Solution

The fourth proportional to 556,404.40, 836,356.20 and 545,906.80 is: 820,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,404.40 : 836,356.20 = 545,906.80 : x
  2. Step 2: Convert to fraction form
    556,404.40/836,356.20 = 545,906.80/x
  3. Step 3: Cross multiply
    556,404.40x = 836,356.20 × 545,906.80
  4. Step 4: Simplify right side
    556,404.40x = 456,572,536,802.16
  5. Step 5: Solve for x
    x = 456,572,536,802.16/556,404.40
  6. Step 6: Final answer
    x = 820,576.79

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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.