Home / 991,511.64-1,367,782.35-647,548.82

Finding the Fourth Proportional to 991,511.64, 1,367,782.35 and 647,548.82

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Solution

The fourth proportional to 991,511.64, 1,367,782.35 and 647,548.82 is: 893,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,511.64 : 1,367,782.35 = 647,548.82 : x
  2. Step 2: Convert to fraction form
    991,511.64/1,367,782.35 = 647,548.82/x
  3. Step 3: Cross multiply
    991,511.64x = 1,367,782.35 × 647,548.82
  4. Step 4: Simplify right side
    991,511.64x = 885,705,850,110.64
  5. Step 5: Solve for x
    x = 885,705,850,110.64/991,511.64
  6. Step 6: Final answer
    x = 893,288.40

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Double scale
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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.