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Finding the Fourth Proportional to 554,954.30, 832,431.45 and 478,846.70

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Solution

The fourth proportional to 554,954.30, 832,431.45 and 478,846.70 is: 718,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,954.30 : 832,431.45 = 478,846.70 : x
  2. Step 2: Convert to fraction form
    554,954.30/832,431.45 = 478,846.70/x
  3. Step 3: Cross multiply
    554,954.30x = 832,431.45 × 478,846.70
  4. Step 4: Simplify right side
    554,954.30x = 398,607,052,808.72
  5. Step 5: Solve for x
    x = 398,607,052,808.72/554,954.30
  6. Step 6: Final answer
    x = 718,270.05

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