Home / 939,864.70-1,409,797.05-621,000.10

Finding the Fourth Proportional to 939,864.70, 1,409,797.05 and 621,000.10

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Solution

The fourth proportional to 939,864.70, 1,409,797.05 and 621,000.10 is: 931,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,864.70 : 1,409,797.05 = 621,000.10 : x
  2. Step 2: Convert to fraction form
    939,864.70/1,409,797.05 = 621,000.10/x
  3. Step 3: Cross multiply
    939,864.70x = 1,409,797.05 × 621,000.10
  4. Step 4: Simplify right side
    939,864.70x = 875,484,109,029.71
  5. Step 5: Solve for x
    x = 875,484,109,029.71/939,864.70
  6. Step 6: Final answer
    x = 931,500.15

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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.