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Finding the Fourth Proportional to 661,333.86, 912,636.45 and 359,527.86

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Solution

The fourth proportional to 661,333.86, 912,636.45 and 359,527.86 is: 496,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,333.86 : 912,636.45 = 359,527.86 : x
  2. Step 2: Convert to fraction form
    661,333.86/912,636.45 = 359,527.86/x
  3. Step 3: Cross multiply
    661,333.86x = 912,636.45 × 359,527.86
  4. Step 4: Simplify right side
    661,333.86x = 328,118,229,826.50
  5. Step 5: Solve for x
    x = 328,118,229,826.50/661,333.86
  6. Step 6: Final answer
    x = 496,146.12

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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.