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Finding the Fourth Proportional to 835,361.71, 1,152,800.30 and 453,388.49

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Solution

The fourth proportional to 835,361.71, 1,152,800.30 and 453,388.49 is: 625,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,361.71 : 1,152,800.30 = 453,388.49 : x
  2. Step 2: Convert to fraction form
    835,361.71/1,152,800.30 = 453,388.49/x
  3. Step 3: Cross multiply
    835,361.71x = 1,152,800.30 × 453,388.49
  4. Step 4: Simplify right side
    835,361.71x = 522,666,386,981.02
  5. Step 5: Solve for x
    x = 522,666,386,981.02/835,361.71
  6. Step 6: Final answer
    x = 625,676.74

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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.