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Finding the Fourth Proportional to 1,792,007.80, 2,688,011.70 and 1,648,929.40

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Solution

The fourth proportional to 1,792,007.80, 2,688,011.70 and 1,648,929.40 is: 2,473,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,007.80 : 2,688,011.70 = 1,648,929.40 : x
  2. Step 2: Convert to fraction form
    1,792,007.80/2,688,011.70 = 1,648,929.40/x
  3. Step 3: Cross multiply
    1,792,007.80x = 2,688,011.70 × 1,648,929.40
  4. Step 4: Simplify right side
    1,792,007.80x = 4,432,341,519,673.98
  5. Step 5: Solve for x
    x = 4,432,341,519,673.98/1,792,007.80
  6. Step 6: Final answer
    x = 2,473,394.10

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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.