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Finding the Fourth Proportional to 556,059.63, 767,361.55 and 301,410.75

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Solution

The fourth proportional to 556,059.63, 767,361.55 and 301,410.75 is: 415,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,059.63 : 767,361.55 = 301,410.75 : x
  2. Step 2: Convert to fraction form
    556,059.63/767,361.55 = 301,410.75/x
  3. Step 3: Cross multiply
    556,059.63x = 767,361.55 × 301,410.75
  4. Step 4: Simplify right side
    556,059.63x = 231,291,020,306.66
  5. Step 5: Solve for x
    x = 231,291,020,306.66/556,059.63
  6. Step 6: Final answer
    x = 415,946.43

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Double scale
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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.