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Finding the Fourth Proportional to 556,362, 767,779.56 and 301,713.39

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Solution

The fourth proportional to 556,362, 767,779.56 and 301,713.39 is: 416,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,362 : 767,779.56 = 301,713.39 : x
  2. Step 2: Convert to fraction form
    556,362/767,779.56 = 301,713.39/x
  3. Step 3: Cross multiply
    556,362x = 767,779.56 × 301,713.39
  4. Step 4: Simplify right side
    556,362x = 231,649,373,820.31
  5. Step 5: Solve for x
    x = 231,649,373,820.31/556,362
  6. Step 6: Final answer
    x = 416,364.48

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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.