Home / 919,208.16-1,267,989.21-551,590.20

Finding the Fourth Proportional to 919,208.16, 1,267,989.21 and 551,590.20

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Solution

The fourth proportional to 919,208.16, 1,267,989.21 and 551,590.20 is: 760,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,208.16 : 1,267,989.21 = 551,590.20 : x
  2. Step 2: Convert to fraction form
    919,208.16/1,267,989.21 = 551,590.20/x
  3. Step 3: Cross multiply
    919,208.16x = 1,267,989.21 × 551,590.20
  4. Step 4: Simplify right side
    919,208.16x = 699,410,421,941.74
  5. Step 5: Solve for x
    x = 699,410,421,941.74/919,208.16
  6. Step 6: Final answer
    x = 760,883.61

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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.