Home / 911,290.20-1,366,279.20-512,053.35

Finding the Fourth Proportional to 911,290.20, 1,366,279.20 and 512,053.35

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Solution

The fourth proportional to 911,290.20, 1,366,279.20 and 512,053.35 is: 767,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,290.20 : 1,366,279.20 = 512,053.35 : x
  2. Step 2: Convert to fraction form
    911,290.20/1,366,279.20 = 512,053.35/x
  3. Step 3: Cross multiply
    911,290.20x = 1,366,279.20 × 512,053.35
  4. Step 4: Simplify right side
    911,290.20x = 699,607,841,395.32
  5. Step 5: Solve for x
    x = 699,607,841,395.32/911,290.20
  6. Step 6: Final answer
    x = 767,711.36

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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.