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Finding the Fourth Proportional to 556,393.68, 767,814.19 and 314,667.18

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Solution

The fourth proportional to 556,393.68, 767,814.19 and 314,667.18 is: 434,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,393.68 : 767,814.19 = 314,667.18 : x
  2. Step 2: Convert to fraction form
    556,393.68/767,814.19 = 314,667.18/x
  3. Step 3: Cross multiply
    556,393.68x = 767,814.19 × 314,667.18
  4. Step 4: Simplify right side
    556,393.68x = 241,605,925,144.62
  5. Step 5: Solve for x
    x = 241,605,925,144.62/556,393.68
  6. Step 6: Final answer
    x = 434,235.57

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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.