Home / 926,621.21-1,390,830.59-447,186.42

Finding the Fourth Proportional to 926,621.21, 1,390,830.59 and 447,186.42

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Solution

The fourth proportional to 926,621.21, 1,390,830.59 and 447,186.42 is: 671,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,621.21 : 1,390,830.59 = 447,186.42 : x
  2. Step 2: Convert to fraction form
    926,621.21/1,390,830.59 = 447,186.42/x
  3. Step 3: Cross multiply
    926,621.21x = 1,390,830.59 × 447,186.42
  4. Step 4: Simplify right side
    926,621.21x = 621,960,553,486.55
  5. Step 5: Solve for x
    x = 621,960,553,486.55/926,621.21
  6. Step 6: Final answer
    x = 671,213.38

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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.