Home / 858,869.20-1,185,216.72-476,886.16

Finding the Fourth Proportional to 858,869.20, 1,185,216.72 and 476,886.16

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Solution

The fourth proportional to 858,869.20, 1,185,216.72 and 476,886.16 is: 658,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,869.20 : 1,185,216.72 = 476,886.16 : x
  2. Step 2: Convert to fraction form
    858,869.20/1,185,216.72 = 476,886.16/x
  3. Step 3: Cross multiply
    858,869.20x = 1,185,216.72 × 476,886.16
  4. Step 4: Simplify right side
    858,869.20x = 565,213,450,368.60
  5. Step 5: Solve for x
    x = 565,213,450,368.60/858,869.20
  6. Step 6: Final answer
    x = 658,090.25

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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.