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Finding the Fourth Proportional to 404,681.80, 607,022.70 and 155,369.80

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Solution

The fourth proportional to 404,681.80, 607,022.70 and 155,369.80 is: 233,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,681.80 : 607,022.70 = 155,369.80 : x
  2. Step 2: Convert to fraction form
    404,681.80/607,022.70 = 155,369.80/x
  3. Step 3: Cross multiply
    404,681.80x = 607,022.70 × 155,369.80
  4. Step 4: Simplify right side
    404,681.80x = 94,312,995,494.46
  5. Step 5: Solve for x
    x = 94,312,995,494.46/404,681.80
  6. Step 6: Final answer
    x = 233,054.70

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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.