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Finding the Fourth Proportional to 528,051.90, 791,494.65 and 291,564.30

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Solution

The fourth proportional to 528,051.90, 791,494.65 and 291,564.30 is: 437,024.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,051.90 : 791,494.65 = 291,564.30 : x
  2. Step 2: Convert to fraction form
    528,051.90/791,494.65 = 291,564.30/x
  3. Step 3: Cross multiply
    528,051.90x = 791,494.65 × 291,564.30
  4. Step 4: Simplify right side
    528,051.90x = 230,771,583,581.00
  5. Step 5: Solve for x
    x = 230,771,583,581.00/528,051.90
  6. Step 6: Final answer
    x = 437,024.44

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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.