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Finding the Fourth Proportional to 551,842.81, 761,068.85 and 358,059.56

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Solution

The fourth proportional to 551,842.81, 761,068.85 and 358,059.56 is: 493,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,842.81 : 761,068.85 = 358,059.56 : x
  2. Step 2: Convert to fraction form
    551,842.81/761,068.85 = 358,059.56/x
  3. Step 3: Cross multiply
    551,842.81x = 761,068.85 × 358,059.56
  4. Step 4: Simplify right side
    551,842.81x = 272,507,977,673.08
  5. Step 5: Solve for x
    x = 272,507,977,673.08/551,842.81
  6. Step 6: Final answer
    x = 493,814.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.