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Finding the Fourth Proportional to 557,440.40, 769,586.94 and 367,007.40

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Solution

The fourth proportional to 557,440.40, 769,586.94 and 367,007.40 is: 506,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,440.40 : 769,586.94 = 367,007.40 : x
  2. Step 2: Convert to fraction form
    557,440.40/769,586.94 = 367,007.40/x
  3. Step 3: Cross multiply
    557,440.40x = 769,586.94 × 367,007.40
  4. Step 4: Simplify right side
    557,440.40x = 282,444,101,923.36
  5. Step 5: Solve for x
    x = 282,444,101,923.36/557,440.40
  6. Step 6: Final answer
    x = 506,680.36

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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.