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Finding the Fourth Proportional to 504,068.16, 695,613.76 and 302,928.96

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Solution

The fourth proportional to 504,068.16, 695,613.76 and 302,928.96 is: 418,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,068.16 : 695,613.76 = 302,928.96 : x
  2. Step 2: Convert to fraction form
    504,068.16/695,613.76 = 302,928.96/x
  3. Step 3: Cross multiply
    504,068.16x = 695,613.76 × 302,928.96
  4. Step 4: Simplify right side
    504,068.16x = 210,721,552,878.49
  5. Step 5: Solve for x
    x = 210,721,552,878.49/504,068.16
  6. Step 6: Final answer
    x = 418,041.78

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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.