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Finding the Fourth Proportional to 540,637.17, 811,193.13 and 256,533.11

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Solution

The fourth proportional to 540,637.17, 811,193.13 and 256,533.11 is: 384,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,637.17 : 811,193.13 = 256,533.11 : x
  2. Step 2: Convert to fraction form
    540,637.17/811,193.13 = 256,533.11/x
  3. Step 3: Cross multiply
    540,637.17x = 811,193.13 × 256,533.11
  4. Step 4: Simplify right side
    540,637.17x = 208,097,895,435.54
  5. Step 5: Solve for x
    x = 208,097,895,435.54/540,637.17
  6. Step 6: Final answer
    x = 384,912.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.