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Finding the Fourth Proportional to 530,911, 732,657.22 and 292,447

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Solution

The fourth proportional to 530,911, 732,657.22 and 292,447 is: 403,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,911 : 732,657.22 = 292,447 : x
  2. Step 2: Convert to fraction form
    530,911/732,657.22 = 292,447/x
  3. Step 3: Cross multiply
    530,911x = 732,657.22 × 292,447
  4. Step 4: Simplify right side
    530,911x = 214,263,406,017.34
  5. Step 5: Solve for x
    x = 214,263,406,017.34/530,911
  6. Step 6: Final answer
    x = 403,576.88

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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.