Home / 688,609.40-1,032,973.60-189,973.40

Finding the Fourth Proportional to 688,609.40, 1,032,973.60 and 189,973.40

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Solution

The fourth proportional to 688,609.40, 1,032,973.60 and 189,973.40 is: 284,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,609.40 : 1,032,973.60 = 189,973.40 : x
  2. Step 2: Convert to fraction form
    688,609.40/1,032,973.60 = 189,973.40/x
  3. Step 3: Cross multiply
    688,609.40x = 1,032,973.60 × 189,973.40
  4. Step 4: Simplify right side
    688,609.40x = 196,237,506,902.24
  5. Step 5: Solve for x
    x = 196,237,506,902.24/688,609.40
  6. Step 6: Final answer
    x = 284,976.51

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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.