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Finding the Fourth Proportional to 528,051, 791,376.66 and 439,871.16

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Solution

The fourth proportional to 528,051, 791,376.66 and 439,871.16 is: 659,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051 : 791,376.66 = 439,871.16 : x
  2. Step 2: Convert to fraction form
    528,051/791,376.66 = 439,871.16/x
  3. Step 3: Cross multiply
    528,051x = 791,376.66 × 439,871.16
  4. Step 4: Simplify right side
    528,051x = 348,103,769,431.13
  5. Step 5: Solve for x
    x = 348,103,769,431.13/528,051
  6. Step 6: Final answer
    x = 659,223.77

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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.