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Finding the Fourth Proportional to 671,940.76, 927,210.90 and 413,776.36

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Solution

The fourth proportional to 671,940.76, 927,210.90 and 413,776.36 is: 570,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,940.76 : 927,210.90 = 413,776.36 : x
  2. Step 2: Convert to fraction form
    671,940.76/927,210.90 = 413,776.36/x
  3. Step 3: Cross multiply
    671,940.76x = 927,210.90 × 413,776.36
  4. Step 4: Simplify right side
    671,940.76x = 383,657,951,154.32
  5. Step 5: Solve for x
    x = 383,657,951,154.32/671,940.76
  6. Step 6: Final answer
    x = 570,969.90

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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.