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Finding the Fourth Proportional to 417,156.89, 575,688.65 and 235,864.93

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Solution

The fourth proportional to 417,156.89, 575,688.65 and 235,864.93 is: 325,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,156.89 : 575,688.65 = 235,864.93 : x
  2. Step 2: Convert to fraction form
    417,156.89/575,688.65 = 235,864.93/x
  3. Step 3: Cross multiply
    417,156.89x = 575,688.65 × 235,864.93
  4. Step 4: Simplify right side
    417,156.89x = 135,784,760,255.60
  5. Step 5: Solve for x
    x = 135,784,760,255.60/417,156.89
  6. Step 6: Final answer
    x = 325,500.46

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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.