Home / 683,218.13-942,841.08-381,412.13

Finding the Fourth Proportional to 683,218.13, 942,841.08 and 381,412.13

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Solution

The fourth proportional to 683,218.13, 942,841.08 and 381,412.13 is: 526,348.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,218.13 : 942,841.08 = 381,412.13 : x
  2. Step 2: Convert to fraction form
    683,218.13/942,841.08 = 381,412.13/x
  3. Step 3: Cross multiply
    683,218.13x = 942,841.08 × 381,412.13
  4. Step 4: Simplify right side
    683,218.13x = 359,611,019,860.10
  5. Step 5: Solve for x
    x = 359,611,019,860.10/683,218.13
  6. Step 6: Final answer
    x = 526,348.77

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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.