Home / 340,215.57-469,417.35-285,973.92

Finding the Fourth Proportional to 340,215.57, 469,417.35 and 285,973.92

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Solution

The fourth proportional to 340,215.57, 469,417.35 and 285,973.92 is: 394,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,215.57 : 469,417.35 = 285,973.92 : x
  2. Step 2: Convert to fraction form
    340,215.57/469,417.35 = 285,973.92/x
  3. Step 3: Cross multiply
    340,215.57x = 469,417.35 × 285,973.92
  4. Step 4: Simplify right side
    340,215.57x = 134,241,119,695.51
  5. Step 5: Solve for x
    x = 134,241,119,695.51/340,215.57
  6. Step 6: Final answer
    x = 394,576.65

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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.