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Finding the Fourth Proportional to 495,881.90, 744,600.45 and 285,929.90

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Solution

The fourth proportional to 495,881.90, 744,600.45 and 285,929.90 is: 429,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,881.90 : 744,600.45 = 285,929.90 : x
  2. Step 2: Convert to fraction form
    495,881.90/744,600.45 = 285,929.90/x
  3. Step 3: Cross multiply
    495,881.90x = 744,600.45 × 285,929.90
  4. Step 4: Simplify right side
    495,881.90x = 212,903,532,208.46
  5. Step 5: Solve for x
    x = 212,903,532,208.46/495,881.90
  6. Step 6: Final answer
    x = 429,343.22

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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.