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Finding the Fourth Proportional to 340,412.10, 510,618.15 and 91,094.10

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Solution

The fourth proportional to 340,412.10, 510,618.15 and 91,094.10 is: 136,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,412.10 : 510,618.15 = 91,094.10 : x
  2. Step 2: Convert to fraction form
    340,412.10/510,618.15 = 91,094.10/x
  3. Step 3: Cross multiply
    340,412.10x = 510,618.15 × 91,094.10
  4. Step 4: Simplify right side
    340,412.10x = 46,514,300,817.92
  5. Step 5: Solve for x
    x = 46,514,300,817.92/340,412.10
  6. Step 6: Final answer
    x = 136,641.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.