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Finding the Fourth Proportional to 639,050.59, 881,894.51 and 352,580.95

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Solution

The fourth proportional to 639,050.59, 881,894.51 and 352,580.95 is: 486,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,050.59 : 881,894.51 = 352,580.95 : x
  2. Step 2: Convert to fraction form
    639,050.59/881,894.51 = 352,580.95/x
  3. Step 3: Cross multiply
    639,050.59x = 881,894.51 × 352,580.95
  4. Step 4: Simplify right side
    639,050.59x = 310,939,204,135.59
  5. Step 5: Solve for x
    x = 310,939,204,135.59/639,050.59
  6. Step 6: Final answer
    x = 486,564.30

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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.