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Finding the Fourth Proportional to 391,567.40, 586,184.70 and 233,714.60

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Solution

The fourth proportional to 391,567.40, 586,184.70 and 233,714.60 is: 349,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,567.40 : 586,184.70 = 233,714.60 : x
  2. Step 2: Convert to fraction form
    391,567.40/586,184.70 = 233,714.60/x
  3. Step 3: Cross multiply
    391,567.40x = 586,184.70 × 233,714.60
  4. Step 4: Simplify right side
    391,567.40x = 136,999,922,686.62
  5. Step 5: Solve for x
    x = 136,999,922,686.62/391,567.40
  6. Step 6: Final answer
    x = 349,875.71

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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.