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Finding the Fourth Proportional to 647,681.23, 893,800.93 and 357,286.24

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Solution

The fourth proportional to 647,681.23, 893,800.93 and 357,286.24 is: 493,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,681.23 : 893,800.93 = 357,286.24 : x
  2. Step 2: Convert to fraction form
    647,681.23/893,800.93 = 357,286.24/x
  3. Step 3: Cross multiply
    647,681.23x = 893,800.93 × 357,286.24
  4. Step 4: Simplify right side
    647,681.23x = 319,342,768,225.98
  5. Step 5: Solve for x
    x = 319,342,768,225.98/647,681.23
  6. Step 6: Final answer
    x = 493,055.47

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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.