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Finding the Fourth Proportional to 443,470.10, 611,953.16 and 249,869.58

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Solution

The fourth proportional to 443,470.10, 611,953.16 and 249,869.58 is: 344,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,470.10 : 611,953.16 = 249,869.58 : x
  2. Step 2: Convert to fraction form
    443,470.10/611,953.16 = 249,869.58/x
  3. Step 3: Cross multiply
    443,470.10x = 611,953.16 × 249,869.58
  4. Step 4: Simplify right side
    443,470.10x = 152,908,479,068.87
  5. Step 5: Solve for x
    x = 152,908,479,068.87/443,470.10
  6. Step 6: Final answer
    x = 344,799.97

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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.