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Finding the Fourth Proportional to 1,865,201.54, 2,573,978.25 and 1,060,385.54

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Solution

The fourth proportional to 1,865,201.54, 2,573,978.25 and 1,060,385.54 is: 1,463,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,201.54 : 2,573,978.25 = 1,060,385.54 : x
  2. Step 2: Convert to fraction form
    1,865,201.54/2,573,978.25 = 1,060,385.54/x
  3. Step 3: Cross multiply
    1,865,201.54x = 2,573,978.25 × 1,060,385.54
  4. Step 4: Simplify right side
    1,865,201.54x = 2,729,409,316,574.51
  5. Step 5: Solve for x
    x = 2,729,409,316,574.51/1,865,201.54
  6. Step 6: Final answer
    x = 1,463,332.12

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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.