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Finding the Fourth Proportional to 544,398.76, 816,510.65 and 170,421.76

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Solution

The fourth proportional to 544,398.76, 816,510.65 and 170,421.76 is: 255,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,398.76 : 816,510.65 = 170,421.76 : x
  2. Step 2: Convert to fraction form
    544,398.76/816,510.65 = 170,421.76/x
  3. Step 3: Cross multiply
    544,398.76x = 816,510.65 × 170,421.76
  4. Step 4: Simplify right side
    544,398.76x = 139,151,179,045.34
  5. Step 5: Solve for x
    x = 139,151,179,045.34/544,398.76
  6. Step 6: Final answer
    x = 255,605.25

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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.