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Finding the Fourth Proportional to 586,397.86, 809,160.78 and 328,288.96

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Solution

The fourth proportional to 586,397.86, 809,160.78 and 328,288.96 is: 453,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,397.86 : 809,160.78 = 328,288.96 : x
  2. Step 2: Convert to fraction form
    586,397.86/809,160.78 = 328,288.96/x
  3. Step 3: Cross multiply
    586,397.86x = 809,160.78 × 328,288.96
  4. Step 4: Simplify right side
    586,397.86x = 265,638,550,938.99
  5. Step 5: Solve for x
    x = 265,638,550,938.99/586,397.86
  6. Step 6: Final answer
    x = 453,000.55

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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.