Home / 664,235.14-916,618.08-392,390.33

Finding the Fourth Proportional to 664,235.14, 916,618.08 and 392,390.33

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Solution

The fourth proportional to 664,235.14, 916,618.08 and 392,390.33 is: 541,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,235.14 : 916,618.08 = 392,390.33 : x
  2. Step 2: Convert to fraction form
    664,235.14/916,618.08 = 392,390.33/x
  3. Step 3: Cross multiply
    664,235.14x = 916,618.08 × 392,390.33
  4. Step 4: Simplify right side
    664,235.14x = 359,672,070,895.17
  5. Step 5: Solve for x
    x = 359,672,070,895.17/664,235.14
  6. Step 6: Final answer
    x = 541,483.05

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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.