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Finding the Fourth Proportional to 1,437,564.96, 1,983,686.36 and 792,985.11

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Solution

The fourth proportional to 1,437,564.96, 1,983,686.36 and 792,985.11 is: 1,094,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,564.96 : 1,983,686.36 = 792,985.11 : x
  2. Step 2: Convert to fraction form
    1,437,564.96/1,983,686.36 = 792,985.11/x
  3. Step 3: Cross multiply
    1,437,564.96x = 1,983,686.36 × 792,985.11
  4. Step 4: Simplify right side
    1,437,564.96x = 1,573,033,732,506.74
  5. Step 5: Solve for x
    x = 1,573,033,732,506.74/1,437,564.96
  6. Step 6: Final answer
    x = 1,094,234.89

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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.