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Finding the Fourth Proportional to 461,666.64, 635,678.88 and 393,530.76

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Solution

The fourth proportional to 461,666.64, 635,678.88 and 393,530.76 is: 541,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,666.64 : 635,678.88 = 393,530.76 : x
  2. Step 2: Convert to fraction form
    461,666.64/635,678.88 = 393,530.76/x
  3. Step 3: Cross multiply
    461,666.64x = 635,678.88 × 393,530.76
  4. Step 4: Simplify right side
    461,666.64x = 250,159,192,762.35
  5. Step 5: Solve for x
    x = 250,159,192,762.35/461,666.64
  6. Step 6: Final answer
    x = 541,861.10

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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.