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Finding the Fourth Proportional to 553,713.30, 831,491.55 and 304,574.10

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Solution

The fourth proportional to 553,713.30, 831,491.55 and 304,574.10 is: 457,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,713.30 : 831,491.55 = 304,574.10 : x
  2. Step 2: Convert to fraction form
    553,713.30/831,491.55 = 304,574.10/x
  3. Step 3: Cross multiply
    553,713.30x = 831,491.55 × 304,574.10
  4. Step 4: Simplify right side
    553,713.30x = 253,250,790,498.86
  5. Step 5: Solve for x
    x = 253,250,790,498.86/553,713.30
  6. Step 6: Final answer
    x = 457,368.08

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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.