Home / 623,786.42-860,830.40-344,392.60

Finding the Fourth Proportional to 623,786.42, 860,830.40 and 344,392.60

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Solution

The fourth proportional to 623,786.42, 860,830.40 and 344,392.60 is: 475,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,786.42 : 860,830.40 = 344,392.60 : x
  2. Step 2: Convert to fraction form
    623,786.42/860,830.40 = 344,392.60/x
  3. Step 3: Cross multiply
    623,786.42x = 860,830.40 × 344,392.60
  4. Step 4: Simplify right side
    623,786.42x = 296,463,619,615.04
  5. Step 5: Solve for x
    x = 296,463,619,615.04/623,786.42
  6. Step 6: Final answer
    x = 475,264.63

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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.