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Finding the Fourth Proportional to 611,462.34, 843,789.87 and 339,547.56

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Solution

The fourth proportional to 611,462.34, 843,789.87 and 339,547.56 is: 468,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,462.34 : 843,789.87 = 339,547.56 : x
  2. Step 2: Convert to fraction form
    611,462.34/843,789.87 = 339,547.56/x
  3. Step 3: Cross multiply
    611,462.34x = 843,789.87 × 339,547.56
  4. Step 4: Simplify right side
    611,462.34x = 286,506,791,511.22
  5. Step 5: Solve for x
    x = 286,506,791,511.22/611,462.34
  6. Step 6: Final answer
    x = 468,560.00

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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.