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Finding the Fourth Proportional to 536,459.91, 740,315.55 and 291,445.63

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Solution

The fourth proportional to 536,459.91, 740,315.55 and 291,445.63 is: 402,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,459.91 : 740,315.55 = 291,445.63 : x
  2. Step 2: Convert to fraction form
    536,459.91/740,315.55 = 291,445.63/x
  3. Step 3: Cross multiply
    536,459.91x = 740,315.55 × 291,445.63
  4. Step 4: Simplify right side
    536,459.91x = 215,761,731,868.55
  5. Step 5: Solve for x
    x = 215,761,731,868.55/536,459.91
  6. Step 6: Final answer
    x = 402,195.44

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1.5x scale

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.