Home / 689,267.52-951,189.12-387,461.52

Finding the Fourth Proportional to 689,267.52, 951,189.12 and 387,461.52

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Solution

The fourth proportional to 689,267.52, 951,189.12 and 387,461.52 is: 534,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,267.52 : 951,189.12 = 387,461.52 : x
  2. Step 2: Convert to fraction form
    689,267.52/951,189.12 = 387,461.52/x
  3. Step 3: Cross multiply
    689,267.52x = 951,189.12 × 387,461.52
  4. Step 4: Simplify right side
    689,267.52x = 368,549,182,242.66
  5. Step 5: Solve for x
    x = 368,549,182,242.66/689,267.52
  6. Step 6: Final answer
    x = 534,696.87

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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.