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Finding the Fourth Proportional to 468,342.05, 646,316.75 and 253,486.71

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Solution

The fourth proportional to 468,342.05, 646,316.75 and 253,486.71 is: 349,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,342.05 : 646,316.75 = 253,486.71 : x
  2. Step 2: Convert to fraction form
    468,342.05/646,316.75 = 253,486.71/x
  3. Step 3: Cross multiply
    468,342.05x = 646,316.75 × 253,486.71
  4. Step 4: Simplify right side
    468,342.05x = 163,832,707,209.11
  5. Step 5: Solve for x
    x = 163,832,707,209.11/468,342.05
  6. Step 6: Final answer
    x = 349,814.22

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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.