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Finding the Fourth Proportional to 659,299.64, 993,890.94 and 615,356.88

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Solution

The fourth proportional to 659,299.64, 993,890.94 and 615,356.88 is: 927,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,299.64 : 993,890.94 = 615,356.88 : x
  2. Step 2: Convert to fraction form
    659,299.64/993,890.94 = 615,356.88/x
  3. Step 3: Cross multiply
    659,299.64x = 993,890.94 × 615,356.88
  4. Step 4: Simplify right side
    659,299.64x = 611,597,627,898.67
  5. Step 5: Solve for x
    x = 611,597,627,898.67/659,299.64
  6. Step 6: Final answer
    x = 927,647.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.