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Finding the Fourth Proportional to 556,056.63, 767,357.42 and 301,407.75

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Solution

The fourth proportional to 556,056.63, 767,357.42 and 301,407.75 is: 415,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,056.63 : 767,357.42 = 301,407.75 : x
  2. Step 2: Convert to fraction form
    556,056.63/767,357.42 = 301,407.75/x
  3. Step 3: Cross multiply
    556,056.63x = 767,357.42 × 301,407.75
  4. Step 4: Simplify right side
    556,056.63x = 231,287,471,900.97
  5. Step 5: Solve for x
    x = 231,287,471,900.97/556,056.63
  6. Step 6: Final answer
    x = 415,942.30

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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.