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Finding the Fourth Proportional to 536,521.36, 740,395.56 and 291,503.92

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Solution

The fourth proportional to 536,521.36, 740,395.56 and 291,503.92 is: 402,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,521.36 : 740,395.56 = 291,503.92 : x
  2. Step 2: Convert to fraction form
    536,521.36/740,395.56 = 291,503.92/x
  3. Step 3: Cross multiply
    536,521.36x = 740,395.56 × 291,503.92
  4. Step 4: Simplify right side
    536,521.36x = 215,828,208,090.60
  5. Step 5: Solve for x
    x = 215,828,208,090.60/536,521.36
  6. Step 6: Final answer
    x = 402,273.28

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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.