Home / 939,411.90-1,409,024.39-433,965.65

Finding the Fourth Proportional to 939,411.90, 1,409,024.39 and 433,965.65

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Solution

The fourth proportional to 939,411.90, 1,409,024.39 and 433,965.65 is: 650,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,411.90 : 1,409,024.39 = 433,965.65 : x
  2. Step 2: Convert to fraction form
    939,411.90/1,409,024.39 = 433,965.65/x
  3. Step 3: Cross multiply
    939,411.90x = 1,409,024.39 × 433,965.65
  4. Step 4: Simplify right side
    939,411.90x = 611,468,185,203.54
  5. Step 5: Solve for x
    x = 611,468,185,203.54/939,411.90
  6. Step 6: Final answer
    x = 650,905.30

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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.