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Finding the Fourth Proportional to 604,885.20, 907,327.80 and 268,087.20

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Solution

The fourth proportional to 604,885.20, 907,327.80 and 268,087.20 is: 402,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,885.20 : 907,327.80 = 268,087.20 : x
  2. Step 2: Convert to fraction form
    604,885.20/907,327.80 = 268,087.20/x
  3. Step 3: Cross multiply
    604,885.20x = 907,327.80 × 268,087.20
  4. Step 4: Simplify right side
    604,885.20x = 243,242,969,384.16
  5. Step 5: Solve for x
    x = 243,242,969,384.16/604,885.20
  6. Step 6: Final answer
    x = 402,130.80

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Similar ratio
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1.5x scale

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.