Home / 1,238,470.60-1,857,705.90-528,521.80

Finding the Fourth Proportional to 1,238,470.60, 1,857,705.90 and 528,521.80

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Solution

The fourth proportional to 1,238,470.60, 1,857,705.90 and 528,521.80 is: 792,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,470.60 : 1,857,705.90 = 528,521.80 : x
  2. Step 2: Convert to fraction form
    1,238,470.60/1,857,705.90 = 528,521.80/x
  3. Step 3: Cross multiply
    1,238,470.60x = 1,857,705.90 × 528,521.80
  4. Step 4: Simplify right side
    1,238,470.60x = 981,838,066,138.62
  5. Step 5: Solve for x
    x = 981,838,066,138.62/1,238,470.60
  6. Step 6: Final answer
    x = 792,782.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.