Home / 690,397.63-953,043.57-464,174.35

Finding the Fourth Proportional to 690,397.63, 953,043.57 and 464,174.35

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Solution

The fourth proportional to 690,397.63, 953,043.57 and 464,174.35 is: 640,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,397.63 : 953,043.57 = 464,174.35 : x
  2. Step 2: Convert to fraction form
    690,397.63/953,043.57 = 464,174.35/x
  3. Step 3: Cross multiply
    690,397.63x = 953,043.57 × 464,174.35
  4. Step 4: Simplify right side
    690,397.63x = 442,378,377,243.82
  5. Step 5: Solve for x
    x = 442,378,377,243.82/690,397.63
  6. Step 6: Final answer
    x = 640,758.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.