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Finding the Fourth Proportional to 404,780.20, 607,343.10 and 194,309.80

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Solution

The fourth proportional to 404,780.20, 607,343.10 and 194,309.80 is: 291,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,780.20 : 607,343.10 = 194,309.80 : x
  2. Step 2: Convert to fraction form
    404,780.20/607,343.10 = 194,309.80/x
  3. Step 3: Cross multiply
    404,780.20x = 607,343.10 × 194,309.80
  4. Step 4: Simplify right side
    404,780.20x = 118,012,716,292.38
  5. Step 5: Solve for x
    x = 118,012,716,292.38/404,780.20
  6. Step 6: Final answer
    x = 291,547.65

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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.