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Finding the Fourth Proportional to 553,693.30, 831,461.55 and 304,554.10

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Solution

The fourth proportional to 553,693.30, 831,461.55 and 304,554.10 is: 457,338.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,693.30 : 831,461.55 = 304,554.10 : x
  2. Step 2: Convert to fraction form
    553,693.30/831,461.55 = 304,554.10/x
  3. Step 3: Cross multiply
    553,693.30x = 831,461.55 × 304,554.10
  4. Step 4: Simplify right side
    553,693.30x = 253,225,024,044.86
  5. Step 5: Solve for x
    x = 253,225,024,044.86/553,693.30
  6. Step 6: Final answer
    x = 457,338.07

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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.