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Finding the Fourth Proportional to 620,051.76, 929,715.65 and 240,529.02

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Solution

The fourth proportional to 620,051.76, 929,715.65 and 240,529.02 is: 360,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,051.76 : 929,715.65 = 240,529.02 : x
  2. Step 2: Convert to fraction form
    620,051.76/929,715.65 = 240,529.02/x
  3. Step 3: Cross multiply
    620,051.76x = 929,715.65 × 240,529.02
  4. Step 4: Simplify right side
    620,051.76x = 223,623,594,173.16
  5. Step 5: Solve for x
    x = 223,623,594,173.16/620,051.76
  6. Step 6: Final answer
    x = 360,653.11

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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.