Home / 527,895.21-728,499.13-286,181.59

Finding the Fourth Proportional to 527,895.21, 728,499.13 and 286,181.59

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Solution

The fourth proportional to 527,895.21, 728,499.13 and 286,181.59 is: 394,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,895.21 : 728,499.13 = 286,181.59 : x
  2. Step 2: Convert to fraction form
    527,895.21/728,499.13 = 286,181.59/x
  3. Step 3: Cross multiply
    527,895.21x = 728,499.13 × 286,181.59
  4. Step 4: Simplify right side
    527,895.21x = 208,483,039,337.02
  5. Step 5: Solve for x
    x = 208,483,039,337.02/527,895.21
  6. Step 6: Final answer
    x = 394,932.62

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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.