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Finding the Fourth Proportional to 556,477.30, 833,731.80 and 471,840.40

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Solution

The fourth proportional to 556,477.30, 833,731.80 and 471,840.40 is: 706,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,477.30 : 833,731.80 = 471,840.40 : x
  2. Step 2: Convert to fraction form
    556,477.30/833,731.80 = 471,840.40/x
  3. Step 3: Cross multiply
    556,477.30x = 833,731.80 × 471,840.40
  4. Step 4: Simplify right side
    556,477.30x = 393,388,346,004.72
  5. Step 5: Solve for x
    x = 393,388,346,004.72/556,477.30
  6. Step 6: Final answer
    x = 706,926.13

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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.