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Finding the Fourth Proportional to 659,514.50, 910,130.07 and 373,028.42

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Solution

The fourth proportional to 659,514.50, 910,130.07 and 373,028.42 is: 514,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,514.50 : 910,130.07 = 373,028.42 : x
  2. Step 2: Convert to fraction form
    659,514.50/910,130.07 = 373,028.42/x
  3. Step 3: Cross multiply
    659,514.50x = 910,130.07 × 373,028.42
  4. Step 4: Simplify right side
    659,514.50x = 339,504,382,006.59
  5. Step 5: Solve for x
    x = 339,504,382,006.59/659,514.50
  6. Step 6: Final answer
    x = 514,779.25

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Half scale
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Double scale
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Similar ratio
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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.