Home / 916,935.60-1,375,403.40-636,999.60

Finding the Fourth Proportional to 916,935.60, 1,375,403.40 and 636,999.60

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Solution

The fourth proportional to 916,935.60, 1,375,403.40 and 636,999.60 is: 955,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,935.60 : 1,375,403.40 = 636,999.60 : x
  2. Step 2: Convert to fraction form
    916,935.60/1,375,403.40 = 636,999.60/x
  3. Step 3: Cross multiply
    916,935.60x = 1,375,403.40 × 636,999.60
  4. Step 4: Simplify right side
    916,935.60x = 876,131,415,638.64
  5. Step 5: Solve for x
    x = 876,131,415,638.64/916,935.60
  6. Step 6: Final answer
    x = 955,499.40

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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.