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Finding the Fourth Proportional to 556,361.44, 767,779.20 and 301,712.56

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Solution

The fourth proportional to 556,361.44, 767,779.20 and 301,712.56 is: 416,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,361.44 : 767,779.20 = 301,712.56 : x
  2. Step 2: Convert to fraction form
    556,361.44/767,779.20 = 301,712.56/x
  3. Step 3: Cross multiply
    556,361.44x = 767,779.20 × 301,712.56
  4. Step 4: Simplify right side
    556,361.44x = 231,648,627,946.75
  5. Step 5: Solve for x
    x = 231,648,627,946.75/556,361.44
  6. Step 6: Final answer
    x = 416,363.56

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1.5x scale

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.