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Finding the Fourth Proportional to 560,638.71, 841,068.84 and 205,655.81

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Solution

The fourth proportional to 560,638.71, 841,068.84 and 205,655.81 is: 308,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,638.71 : 841,068.84 = 205,655.81 : x
  2. Step 2: Convert to fraction form
    560,638.71/841,068.84 = 205,655.81/x
  3. Step 3: Cross multiply
    560,638.71x = 841,068.84 × 205,655.81
  4. Step 4: Simplify right side
    560,638.71x = 172,970,693,555.96
  5. Step 5: Solve for x
    x = 172,970,693,555.96/560,638.71
  6. Step 6: Final answer
    x = 308,524.35

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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.