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Finding the Fourth Proportional to 556,236.75, 767,389.62 and 362,871.77

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Solution

The fourth proportional to 556,236.75, 767,389.62 and 362,871.77 is: 500,621.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,236.75 : 767,389.62 = 362,871.77 : x
  2. Step 2: Convert to fraction form
    556,236.75/767,389.62 = 362,871.77/x
  3. Step 3: Cross multiply
    556,236.75x = 767,389.62 × 362,871.77
  4. Step 4: Simplify right side
    556,236.75x = 278,464,029,689.03
  5. Step 5: Solve for x
    x = 278,464,029,689.03/556,236.75
  6. Step 6: Final answer
    x = 500,621.42

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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.