Home / 816,111.10-1,225,150.80-456,568.30

Finding the Fourth Proportional to 816,111.10, 1,225,150.80 and 456,568.30

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Solution

The fourth proportional to 816,111.10, 1,225,150.80 and 456,568.30 is: 685,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,111.10 : 1,225,150.80 = 456,568.30 : x
  2. Step 2: Convert to fraction form
    816,111.10/1,225,150.80 = 456,568.30/x
  3. Step 3: Cross multiply
    816,111.10x = 1,225,150.80 × 456,568.30
  4. Step 4: Simplify right side
    816,111.10x = 559,365,017,999.64
  5. Step 5: Solve for x
    x = 559,365,017,999.64/816,111.10
  6. Step 6: Final answer
    x = 685,403.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.