Home / 857,222.32-1,182,146.16-512,999.68

Finding the Fourth Proportional to 857,222.32, 1,182,146.16 and 512,999.68

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Solution

The fourth proportional to 857,222.32, 1,182,146.16 and 512,999.68 is: 707,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,222.32 : 1,182,146.16 = 512,999.68 : x
  2. Step 2: Convert to fraction form
    857,222.32/1,182,146.16 = 512,999.68/x
  3. Step 3: Cross multiply
    857,222.32x = 1,182,146.16 × 512,999.68
  4. Step 4: Simplify right side
    857,222.32x = 606,440,601,793.23
  5. Step 5: Solve for x
    x = 606,440,601,793.23/857,222.32
  6. Step 6: Final answer
    x = 707,448.45

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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.