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Finding the Fourth Proportional to 405,259.30, 607,799.37 and 117,008.32

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Solution

The fourth proportional to 405,259.30, 607,799.37 and 117,008.32 is: 175,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,259.30 : 607,799.37 = 117,008.32 : x
  2. Step 2: Convert to fraction form
    405,259.30/607,799.37 = 117,008.32/x
  3. Step 3: Cross multiply
    405,259.30x = 607,799.37 × 117,008.32
  4. Step 4: Simplify right side
    405,259.30x = 71,117,583,180.76
  5. Step 5: Solve for x
    x = 71,117,583,180.76/405,259.30
  6. Step 6: Final answer
    x = 175,486.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.