Home / 936,309.10-1,402,087.65-515,109.10

Finding the Fourth Proportional to 936,309.10, 1,402,087.65 and 515,109.10

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Solution

The fourth proportional to 936,309.10, 1,402,087.65 and 515,109.10 is: 771,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,309.10 : 1,402,087.65 = 515,109.10 : x
  2. Step 2: Convert to fraction form
    936,309.10/1,402,087.65 = 515,109.10/x
  3. Step 3: Cross multiply
    936,309.10x = 1,402,087.65 × 515,109.10
  4. Step 4: Simplify right side
    936,309.10x = 722,228,107,512.62
  5. Step 5: Solve for x
    x = 722,228,107,512.62/936,309.10
  6. Step 6: Final answer
    x = 771,356.50

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Double scale
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Similar ratio
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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.