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Finding the Fourth Proportional to 975,344.97, 1,345,978.02 and 545,632.27

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Solution

The fourth proportional to 975,344.97, 1,345,978.02 and 545,632.27 is: 752,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,344.97 : 1,345,978.02 = 545,632.27 : x
  2. Step 2: Convert to fraction form
    975,344.97/1,345,978.02 = 545,632.27/x
  3. Step 3: Cross multiply
    975,344.97x = 1,345,978.02 × 545,632.27
  4. Step 4: Simplify right side
    975,344.97x = 734,409,042,422.71
  5. Step 5: Solve for x
    x = 734,409,042,422.71/975,344.97
  6. Step 6: Final answer
    x = 752,973.63

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1.5x scale

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.