Home / 696,779.70-1,039,592.69-621,000.15

Finding the Fourth Proportional to 696,779.70, 1,039,592.69 and 621,000.15

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Solution

The fourth proportional to 696,779.70, 1,039,592.69 and 621,000.15 is: 926,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,779.70 : 1,039,592.69 = 621,000.15 : x
  2. Step 2: Convert to fraction form
    696,779.70/1,039,592.69 = 621,000.15/x
  3. Step 3: Cross multiply
    696,779.70x = 1,039,592.69 × 621,000.15
  4. Step 4: Simplify right side
    696,779.70x = 645,587,213,323.90
  5. Step 5: Solve for x
    x = 645,587,213,323.90/696,779.70
  6. Step 6: Final answer
    x = 926,529.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.