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Finding the Fourth Proportional to 545,598.65, 752,925.62 and 316,288.69

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Solution

The fourth proportional to 545,598.65, 752,925.62 and 316,288.69 is: 436,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,598.65 : 752,925.62 = 316,288.69 : x
  2. Step 2: Convert to fraction form
    545,598.65/752,925.62 = 316,288.69/x
  3. Step 3: Cross multiply
    545,598.65x = 752,925.62 × 316,288.69
  4. Step 4: Simplify right side
    545,598.65x = 238,141,856,925.65
  5. Step 5: Solve for x
    x = 238,141,856,925.65/545,598.65
  6. Step 6: Final answer
    x = 436,478.09

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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.