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Finding the Fourth Proportional to 672,666.32, 927,754.64 and 430,971.53

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Solution

The fourth proportional to 672,666.32, 927,754.64 and 430,971.53 is: 594,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,666.32 : 927,754.64 = 430,971.53 : x
  2. Step 2: Convert to fraction form
    672,666.32/927,754.64 = 430,971.53/x
  3. Step 3: Cross multiply
    672,666.32x = 927,754.64 × 430,971.53
  4. Step 4: Simplify right side
    672,666.32x = 399,835,836,665.40
  5. Step 5: Solve for x
    x = 399,835,836,665.40/672,666.32
  6. Step 6: Final answer
    x = 594,404.43

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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.