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Finding the Fourth Proportional to 567,145.02, 782,715.30 and 423,655.96

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Solution

The fourth proportional to 567,145.02, 782,715.30 and 423,655.96 is: 584,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,145.02 : 782,715.30 = 423,655.96 : x
  2. Step 2: Convert to fraction form
    567,145.02/782,715.30 = 423,655.96/x
  3. Step 3: Cross multiply
    567,145.02x = 782,715.30 × 423,655.96
  4. Step 4: Simplify right side
    567,145.02x = 331,602,001,828.19
  5. Step 5: Solve for x
    x = 331,602,001,828.19/567,145.02
  6. Step 6: Final answer
    x = 584,686.44

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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.