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Finding the Fourth Proportional to 468,288.77, 646,238.45 and 253,428.89

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Solution

The fourth proportional to 468,288.77, 646,238.45 and 253,428.89 is: 349,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,288.77 : 646,238.45 = 253,428.89 : x
  2. Step 2: Convert to fraction form
    468,288.77/646,238.45 = 253,428.89/x
  3. Step 3: Cross multiply
    468,288.77x = 646,238.45 × 253,428.89
  4. Step 4: Simplify right side
    468,288.77x = 163,775,490,461.20
  5. Step 5: Solve for x
    x = 163,775,490,461.20/468,288.77
  6. Step 6: Final answer
    x = 349,731.84

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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.