Home / 696,437.39-961,123.62-390,611.87

Finding the Fourth Proportional to 696,437.39, 961,123.62 and 390,611.87

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Solution

The fourth proportional to 696,437.39, 961,123.62 and 390,611.87 is: 539,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,437.39 : 961,123.62 = 390,611.87 : x
  2. Step 2: Convert to fraction form
    696,437.39/961,123.62 = 390,611.87/x
  3. Step 3: Cross multiply
    696,437.39x = 961,123.62 × 390,611.87
  4. Step 4: Simplify right side
    696,437.39x = 375,426,294,772.76
  5. Step 5: Solve for x
    x = 375,426,294,772.76/696,437.39
  6. Step 6: Final answer
    x = 539,066.83

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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.