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Finding the Fourth Proportional to 926,125.80, 1,388,411.10 and 482,893.80

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Solution

The fourth proportional to 926,125.80, 1,388,411.10 and 482,893.80 is: 723,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,125.80 : 1,388,411.10 = 482,893.80 : x
  2. Step 2: Convert to fraction form
    926,125.80/1,388,411.10 = 482,893.80/x
  3. Step 3: Cross multiply
    926,125.80x = 1,388,411.10 × 482,893.80
  4. Step 4: Simplify right side
    926,125.80x = 670,455,112,041.18
  5. Step 5: Solve for x
    x = 670,455,112,041.18/926,125.80
  6. Step 6: Final answer
    x = 723,935.25

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1.5x scale

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.