Home / 413,820.64-571,139.04-386,806.08

Finding the Fourth Proportional to 413,820.64, 571,139.04 and 386,806.08

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Solution

The fourth proportional to 413,820.64, 571,139.04 and 386,806.08 is: 533,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,820.64 : 571,139.04 = 386,806.08 : x
  2. Step 2: Convert to fraction form
    413,820.64/571,139.04 = 386,806.08/x
  3. Step 3: Cross multiply
    413,820.64x = 571,139.04 × 386,806.08
  4. Step 4: Simplify right side
    413,820.64x = 220,920,053,197.36
  5. Step 5: Solve for x
    x = 220,920,053,197.36/413,820.64
  6. Step 6: Final answer
    x = 533,854.60

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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.