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Finding the Fourth Proportional to 556,099.68, 767,417.04 and 301,448.64

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Solution

The fourth proportional to 556,099.68, 767,417.04 and 301,448.64 is: 415,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,099.68 : 767,417.04 = 301,448.64 : x
  2. Step 2: Convert to fraction form
    556,099.68/767,417.04 = 301,448.64/x
  3. Step 3: Cross multiply
    556,099.68x = 767,417.04 × 301,448.64
  4. Step 4: Simplify right side
    556,099.68x = 231,336,823,020.83
  5. Step 5: Solve for x
    x = 231,336,823,020.83/556,099.68
  6. Step 6: Final answer
    x = 415,998.84

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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.