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Finding the Fourth Proportional to 508,473.68, 762,715.92 and 153,490.64

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Solution

The fourth proportional to 508,473.68, 762,715.92 and 153,490.64 is: 230,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,473.68 : 762,715.92 = 153,490.64 : x
  2. Step 2: Convert to fraction form
    508,473.68/762,715.92 = 153,490.64/x
  3. Step 3: Cross multiply
    508,473.68x = 762,715.92 × 153,490.64
  4. Step 4: Simplify right side
    508,473.68x = 117,069,754,698.99
  5. Step 5: Solve for x
    x = 117,069,754,698.99/508,473.68
  6. Step 6: Final answer
    x = 230,237.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.