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Finding the Fourth Proportional to 575,828.65, 794,638.00 and 317,707.67

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Solution

The fourth proportional to 575,828.65, 794,638.00 and 317,707.67 is: 438,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,828.65 : 794,638.00 = 317,707.67 : x
  2. Step 2: Convert to fraction form
    575,828.65/794,638.00 = 317,707.67/x
  3. Step 3: Cross multiply
    575,828.65x = 794,638.00 × 317,707.67
  4. Step 4: Simplify right side
    575,828.65x = 252,462,583,600.25
  5. Step 5: Solve for x
    x = 252,462,583,600.25/575,828.65
  6. Step 6: Final answer
    x = 438,433.53

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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.