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Finding the Fourth Proportional to 675,917.52, 932,752.08 and 369,986.40

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Solution

The fourth proportional to 675,917.52, 932,752.08 and 369,986.40 is: 510,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,917.52 : 932,752.08 = 369,986.40 : x
  2. Step 2: Convert to fraction form
    675,917.52/932,752.08 = 369,986.40/x
  3. Step 3: Cross multiply
    675,917.52x = 932,752.08 × 369,986.40
  4. Step 4: Simplify right side
    675,917.52x = 345,105,584,171.71
  5. Step 5: Solve for x
    x = 345,105,584,171.71/675,917.52
  6. Step 6: Final answer
    x = 510,573.52

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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.