Home / 690,615.45-953,196.28-464,129.73

Finding the Fourth Proportional to 690,615.45, 953,196.28 and 464,129.73

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Solution

The fourth proportional to 690,615.45, 953,196.28 and 464,129.73 is: 640,597.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,615.45 : 953,196.28 = 464,129.73 : x
  2. Step 2: Convert to fraction form
    690,615.45/953,196.28 = 464,129.73/x
  3. Step 3: Cross multiply
    690,615.45x = 953,196.28 × 464,129.73
  4. Step 4: Simplify right side
    690,615.45x = 442,406,730,913.08
  5. Step 5: Solve for x
    x = 442,406,730,913.08/690,615.45
  6. Step 6: Final answer
    x = 640,597.79

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Double scale
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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.