Home / 939,360.32-1,296,319.57-509,640.33

Finding the Fourth Proportional to 939,360.32, 1,296,319.57 and 509,640.33

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Solution

The fourth proportional to 939,360.32, 1,296,319.57 and 509,640.33 is: 703,304.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,360.32 : 1,296,319.57 = 509,640.33 : x
  2. Step 2: Convert to fraction form
    939,360.32/1,296,319.57 = 509,640.33/x
  3. Step 3: Cross multiply
    939,360.32x = 1,296,319.57 × 509,640.33
  4. Step 4: Simplify right side
    939,360.32x = 660,656,732,166.16
  5. Step 5: Solve for x
    x = 660,656,732,166.16/939,360.32
  6. Step 6: Final answer
    x = 703,304.92

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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.