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Finding the Fourth Proportional to 700,913.90, 967,262.05 and 378,624.01

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Solution

The fourth proportional to 700,913.90, 967,262.05 and 378,624.01 is: 522,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,913.90 : 967,262.05 = 378,624.01 : x
  2. Step 2: Convert to fraction form
    700,913.90/967,262.05 = 378,624.01/x
  3. Step 3: Cross multiply
    700,913.90x = 967,262.05 × 378,624.01
  4. Step 4: Simplify right side
    700,913.90x = 366,228,631,728.79
  5. Step 5: Solve for x
    x = 366,228,631,728.79/700,913.90
  6. Step 6: Final answer
    x = 522,501.59

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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.