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Finding the Fourth Proportional to 570,149.46, 786,827.25 and 368,945.46

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Solution

The fourth proportional to 570,149.46, 786,827.25 and 368,945.46 is: 509,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,149.46 : 786,827.25 = 368,945.46 : x
  2. Step 2: Convert to fraction form
    570,149.46/786,827.25 = 368,945.46/x
  3. Step 3: Cross multiply
    570,149.46x = 786,827.25 × 368,945.46
  4. Step 4: Simplify right side
    570,149.46x = 290,296,341,691.79
  5. Step 5: Solve for x
    x = 290,296,341,691.79/570,149.46
  6. Step 6: Final answer
    x = 509,158.32

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Double scale
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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.