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Finding the Fourth Proportional to 573,112.35, 790,903.23 and 315,013.16

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Solution

The fourth proportional to 573,112.35, 790,903.23 and 315,013.16 is: 434,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,112.35 : 790,903.23 = 315,013.16 : x
  2. Step 2: Convert to fraction form
    573,112.35/790,903.23 = 315,013.16/x
  3. Step 3: Cross multiply
    573,112.35x = 790,903.23 × 315,013.16
  4. Step 4: Simplify right side
    573,112.35x = 249,144,930,191.84
  5. Step 5: Solve for x
    x = 249,144,930,191.84/573,112.35
  6. Step 6: Final answer
    x = 434,722.67

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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.