Home / 716,528.04-988,788.30-394,238.36

Finding the Fourth Proportional to 716,528.04, 988,788.30 and 394,238.36

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Solution

The fourth proportional to 716,528.04, 988,788.30 and 394,238.36 is: 544,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,528.04 : 988,788.30 = 394,238.36 : x
  2. Step 2: Convert to fraction form
    716,528.04/988,788.30 = 394,238.36/x
  3. Step 3: Cross multiply
    716,528.04x = 988,788.30 × 394,238.36
  4. Step 4: Simplify right side
    716,528.04x = 389,818,277,779.19
  5. Step 5: Solve for x
    x = 389,818,277,779.19/716,528.04
  6. Step 6: Final answer
    x = 544,037.72

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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.