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Finding the Fourth Proportional to 417,157.80, 575,674.34 and 235,905.36

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Solution

The fourth proportional to 417,157.80, 575,674.34 and 235,905.36 is: 325,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,157.80 : 575,674.34 = 235,905.36 : x
  2. Step 2: Convert to fraction form
    417,157.80/575,674.34 = 235,905.36/x
  3. Step 3: Cross multiply
    417,157.80x = 575,674.34 × 235,905.36
  4. Step 4: Simplify right side
    417,157.80x = 135,804,662,420.46
  5. Step 5: Solve for x
    x = 135,804,662,420.46/417,157.80
  6. Step 6: Final answer
    x = 325,547.46

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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.