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Finding the Fourth Proportional to 659,814.57, 910,548.96 and 358,008.57

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Solution

The fourth proportional to 659,814.57, 910,548.96 and 358,008.57 is: 494,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,814.57 : 910,548.96 = 358,008.57 : x
  2. Step 2: Convert to fraction form
    659,814.57/910,548.96 = 358,008.57/x
  3. Step 3: Cross multiply
    659,814.57x = 910,548.96 × 358,008.57
  4. Step 4: Simplify right side
    659,814.57x = 325,984,331,084.59
  5. Step 5: Solve for x
    x = 325,984,331,084.59/659,814.57
  6. Step 6: Final answer
    x = 494,054.46

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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.