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Finding the Fourth Proportional to 540,383.11, 810,588.56 and 256,007.05

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Solution

The fourth proportional to 540,383.11, 810,588.56 and 256,007.05 is: 384,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,383.11 : 810,588.56 = 256,007.05 : x
  2. Step 2: Convert to fraction form
    540,383.11/810,588.56 = 256,007.05/x
  3. Step 3: Cross multiply
    540,383.11x = 810,588.56 × 256,007.05
  4. Step 4: Simplify right side
    540,383.11x = 207,516,386,009.35
  5. Step 5: Solve for x
    x = 207,516,386,009.35/540,383.11
  6. Step 6: Final answer
    x = 384,017.16

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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.