Home / 386,646.03-533,326.14-279,373.68

Finding the Fourth Proportional to 386,646.03, 533,326.14 and 279,373.68

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Solution

The fourth proportional to 386,646.03, 533,326.14 and 279,373.68 is: 385,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,646.03 : 533,326.14 = 279,373.68 : x
  2. Step 2: Convert to fraction form
    386,646.03/533,326.14 = 279,373.68/x
  3. Step 3: Cross multiply
    386,646.03x = 533,326.14 × 279,373.68
  4. Step 4: Simplify right side
    386,646.03x = 148,997,286,372.00
  5. Step 5: Solve for x
    x = 148,997,286,372.00/386,646.03
  6. Step 6: Final answer
    x = 385,358.38

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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.