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Finding the Fourth Proportional to 675,762.76, 932,287.35 and 434,011.78

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Solution

The fourth proportional to 675,762.76, 932,287.35 and 434,011.78 is: 598,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,762.76 : 932,287.35 = 434,011.78 : x
  2. Step 2: Convert to fraction form
    675,762.76/932,287.35 = 434,011.78/x
  3. Step 3: Cross multiply
    675,762.76x = 932,287.35 × 434,011.78
  4. Step 4: Simplify right side
    675,762.76x = 404,623,692,244.98
  5. Step 5: Solve for x
    x = 404,623,692,244.98/675,762.76
  6. Step 6: Final answer
    x = 598,765.89

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.