Home / 907,328.70-1,361,430.45-640,514.70

Finding the Fourth Proportional to 907,328.70, 1,361,430.45 and 640,514.70

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Solution

The fourth proportional to 907,328.70, 1,361,430.45 and 640,514.70 is: 961,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,328.70 : 1,361,430.45 = 640,514.70 : x
  2. Step 2: Convert to fraction form
    907,328.70/1,361,430.45 = 640,514.70/x
  3. Step 3: Cross multiply
    907,328.70x = 1,361,430.45 × 640,514.70
  4. Step 4: Simplify right side
    907,328.70x = 872,016,216,252.62
  5. Step 5: Solve for x
    x = 872,016,216,252.62/907,328.70
  6. Step 6: Final answer
    x = 961,080.83

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1.5x scale

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.