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Finding the Fourth Proportional to 556,211.70, 767,587.26 and 314,530.43

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Solution

The fourth proportional to 556,211.70, 767,587.26 and 314,530.43 is: 434,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,211.70 : 767,587.26 = 314,530.43 : x
  2. Step 2: Convert to fraction form
    556,211.70/767,587.26 = 314,530.43/x
  3. Step 3: Cross multiply
    556,211.70x = 767,587.26 × 314,530.43
  4. Step 4: Simplify right side
    556,211.70x = 241,429,550,950.32
  5. Step 5: Solve for x
    x = 241,429,550,950.32/556,211.70
  6. Step 6: Final answer
    x = 434,060.54

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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.