Home / 1,277,392.50-1,916,089.07-519,646.22

Finding the Fourth Proportional to 1,277,392.50, 1,916,089.07 and 519,646.22

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Solution

The fourth proportional to 1,277,392.50, 1,916,089.07 and 519,646.22 is: 779,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,392.50 : 1,916,089.07 = 519,646.22 : x
  2. Step 2: Convert to fraction form
    1,277,392.50/1,916,089.07 = 519,646.22/x
  3. Step 3: Cross multiply
    1,277,392.50x = 1,916,089.07 × 519,646.22
  4. Step 4: Simplify right side
    1,277,392.50x = 995,688,430,230.14
  5. Step 5: Solve for x
    x = 995,688,430,230.14/1,277,392.50
  6. Step 6: Final answer
    x = 779,469.45

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Double scale
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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.