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Finding the Fourth Proportional to 554,464.80, 831,697.20 and 302,522.40

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Solution

The fourth proportional to 554,464.80, 831,697.20 and 302,522.40 is: 453,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,464.80 : 831,697.20 = 302,522.40 : x
  2. Step 2: Convert to fraction form
    554,464.80/831,697.20 = 302,522.40/x
  3. Step 3: Cross multiply
    554,464.80x = 831,697.20 × 302,522.40
  4. Step 4: Simplify right side
    554,464.80x = 251,607,033,017.28
  5. Step 5: Solve for x
    x = 251,607,033,017.28/554,464.80
  6. Step 6: Final answer
    x = 453,783.60

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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.