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Finding the Fourth Proportional to 389,590.76, 537,543.95 and 236,624.69

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Solution

The fourth proportional to 389,590.76, 537,543.95 and 236,624.69 is: 326,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,590.76 : 537,543.95 = 236,624.69 : x
  2. Step 2: Convert to fraction form
    389,590.76/537,543.95 = 236,624.69/x
  3. Step 3: Cross multiply
    389,590.76x = 537,543.95 × 236,624.69
  4. Step 4: Simplify right side
    389,590.76x = 127,196,170,690.86
  5. Step 5: Solve for x
    x = 127,196,170,690.86/389,590.76
  6. Step 6: Final answer
    x = 326,486.62

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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.