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Finding the Fourth Proportional to 610,814.80, 843,148.20 and 369,106.48

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Solution

The fourth proportional to 610,814.80, 843,148.20 and 369,106.48 is: 509,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,814.80 : 843,148.20 = 369,106.48 : x
  2. Step 2: Convert to fraction form
    610,814.80/843,148.20 = 369,106.48/x
  3. Step 3: Cross multiply
    610,814.80x = 843,148.20 × 369,106.48
  4. Step 4: Simplify right side
    610,814.80x = 311,211,464,220.34
  5. Step 5: Solve for x
    x = 311,211,464,220.34/610,814.80
  6. Step 6: Final answer
    x = 509,502.17

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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.