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Finding the Fourth Proportional to 507,613.14, 760,907.04 and 318,206.26

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Solution

The fourth proportional to 507,613.14, 760,907.04 and 318,206.26 is: 476,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,613.14 : 760,907.04 = 318,206.26 : x
  2. Step 2: Convert to fraction form
    507,613.14/760,907.04 = 318,206.26/x
  3. Step 3: Cross multiply
    507,613.14x = 760,907.04 × 318,206.26
  4. Step 4: Simplify right side
    507,613.14x = 242,125,382,988.86
  5. Step 5: Solve for x
    x = 242,125,382,988.86/507,613.14
  6. Step 6: Final answer
    x = 476,988.01

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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.