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Finding the Fourth Proportional to 962,903.70, 1,443,699.45 and 457,706.70

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Solution

The fourth proportional to 962,903.70, 1,443,699.45 and 457,706.70 is: 686,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,903.70 : 1,443,699.45 = 457,706.70 : x
  2. Step 2: Convert to fraction form
    962,903.70/1,443,699.45 = 457,706.70/x
  3. Step 3: Cross multiply
    962,903.70x = 1,443,699.45 × 457,706.70
  4. Step 4: Simplify right side
    962,903.70x = 660,790,911,051.32
  5. Step 5: Solve for x
    x = 660,790,911,051.32/962,903.70
  6. Step 6: Final answer
    x = 686,248.18

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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.