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Finding the Fourth Proportional to 476,316.96, 657,314.88 and 261,460.80

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Solution

The fourth proportional to 476,316.96, 657,314.88 and 261,460.80 is: 360,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,316.96 : 657,314.88 = 261,460.80 : x
  2. Step 2: Convert to fraction form
    476,316.96/657,314.88 = 261,460.80/x
  3. Step 3: Cross multiply
    476,316.96x = 657,314.88 × 261,460.80
  4. Step 4: Simplify right side
    476,316.96x = 171,862,074,376.70
  5. Step 5: Solve for x
    x = 171,862,074,376.70/476,316.96
  6. Step 6: Final answer
    x = 360,814.52

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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.