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Finding the Fourth Proportional to 832,457, 1,148,790.66 and 450,483.78

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Solution

The fourth proportional to 832,457, 1,148,790.66 and 450,483.78 is: 621,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,457 : 1,148,790.66 = 450,483.78 : x
  2. Step 2: Convert to fraction form
    832,457/1,148,790.66 = 450,483.78/x
  3. Step 3: Cross multiply
    832,457x = 1,148,790.66 × 450,483.78
  4. Step 4: Simplify right side
    832,457x = 517,511,558,945.50
  5. Step 5: Solve for x
    x = 517,511,558,945.50/832,457
  6. Step 6: Final answer
    x = 621,667.62

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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.