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Finding the Fourth Proportional to 468,465.42, 646,482.48 and 253,605.47

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Solution

The fourth proportional to 468,465.42, 646,482.48 and 253,605.47 is: 349,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,465.42 : 646,482.48 = 253,605.47 : x
  2. Step 2: Convert to fraction form
    468,465.42/646,482.48 = 253,605.47/x
  3. Step 3: Cross multiply
    468,465.42x = 646,482.48 × 253,605.47
  4. Step 4: Simplify right side
    468,465.42x = 163,951,491,428.04
  5. Step 5: Solve for x
    x = 163,951,491,428.04/468,465.42
  6. Step 6: Final answer
    x = 349,975.66

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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.