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Finding the Fourth Proportional to 630,757.81, 946,554.59 and 346,646.77

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Solution

The fourth proportional to 630,757.81, 946,554.59 and 346,646.77 is: 520,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,757.81 : 946,554.59 = 346,646.77 : x
  2. Step 2: Convert to fraction form
    630,757.81/946,554.59 = 346,646.77/x
  3. Step 3: Cross multiply
    630,757.81x = 946,554.59 × 346,646.77
  4. Step 4: Simplify right side
    630,757.81x = 328,120,091,252.17
  5. Step 5: Solve for x
    x = 328,120,091,252.17/630,757.81
  6. Step 6: Final answer
    x = 520,199.81

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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.