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Finding the Fourth Proportional to 570,010.65, 786,545.55 and 328,371.45

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Solution

The fourth proportional to 570,010.65, 786,545.55 and 328,371.45 is: 453,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,010.65 : 786,545.55 = 328,371.45 : x
  2. Step 2: Convert to fraction form
    570,010.65/786,545.55 = 328,371.45/x
  3. Step 3: Cross multiply
    570,010.65x = 786,545.55 × 328,371.45
  4. Step 4: Simplify right side
    570,010.65x = 258,279,102,744.55
  5. Step 5: Solve for x
    x = 258,279,102,744.55/570,010.65
  6. Step 6: Final answer
    x = 453,112.77

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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.