Home / 288,535.32-398,289.81-258,267.24

Finding the Fourth Proportional to 288,535.32, 398,289.81 and 258,267.24

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Solution

The fourth proportional to 288,535.32, 398,289.81 and 258,267.24 is: 356,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,535.32 : 398,289.81 = 258,267.24 : x
  2. Step 2: Convert to fraction form
    288,535.32/398,289.81 = 258,267.24/x
  3. Step 3: Cross multiply
    288,535.32x = 398,289.81 × 258,267.24
  4. Step 4: Simplify right side
    288,535.32x = 102,865,209,948.82
  5. Step 5: Solve for x
    x = 102,865,209,948.82/288,535.32
  6. Step 6: Final answer
    x = 356,508.21

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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.