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Finding the Fourth Proportional to 539,950.86, 745,140.06 and 313,596.36

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Solution

The fourth proportional to 539,950.86, 745,140.06 and 313,596.36 is: 432,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,950.86 : 745,140.06 = 313,596.36 : x
  2. Step 2: Convert to fraction form
    539,950.86/745,140.06 = 313,596.36/x
  3. Step 3: Cross multiply
    539,950.86x = 745,140.06 × 313,596.36
  4. Step 4: Simplify right side
    539,950.86x = 233,673,210,506.18
  5. Step 5: Solve for x
    x = 233,673,210,506.18/539,950.86
  6. Step 6: Final answer
    x = 432,767.55

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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.