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Finding the Fourth Proportional to 475,016.40, 711,212.40 and 370,040.40

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Solution

The fourth proportional to 475,016.40, 711,212.40 and 370,040.40 is: 554,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,016.40 : 711,212.40 = 370,040.40 : x
  2. Step 2: Convert to fraction form
    475,016.40/711,212.40 = 370,040.40/x
  3. Step 3: Cross multiply
    475,016.40x = 711,212.40 × 370,040.40
  4. Step 4: Simplify right side
    475,016.40x = 263,177,320,980.96
  5. Step 5: Solve for x
    x = 263,177,320,980.96/475,016.40
  6. Step 6: Final answer
    x = 554,038.39

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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.