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Finding the Fourth Proportional to 826,907.40, 1,240,506.90 and 294,737.40

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Solution

The fourth proportional to 826,907.40, 1,240,506.90 and 294,737.40 is: 442,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,907.40 : 1,240,506.90 = 294,737.40 : x
  2. Step 2: Convert to fraction form
    826,907.40/1,240,506.90 = 294,737.40/x
  3. Step 3: Cross multiply
    826,907.40x = 1,240,506.90 × 294,737.40
  4. Step 4: Simplify right side
    826,907.40x = 365,623,778,388.06
  5. Step 5: Solve for x
    x = 365,623,778,388.06/826,907.40
  6. Step 6: Final answer
    x = 442,158.07

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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.