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Finding the Fourth Proportional to 586,195.38, 808,951.05 and 317,923.38

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Solution

The fourth proportional to 586,195.38, 808,951.05 and 317,923.38 is: 438,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,195.38 : 808,951.05 = 317,923.38 : x
  2. Step 2: Convert to fraction form
    586,195.38/808,951.05 = 317,923.38/x
  3. Step 3: Cross multiply
    586,195.38x = 808,951.05 × 317,923.38
  4. Step 4: Simplify right side
    586,195.38x = 257,184,452,070.55
  5. Step 5: Solve for x
    x = 257,184,452,070.55/586,195.38
  6. Step 6: Final answer
    x = 438,735.04

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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.