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Finding the Fourth Proportional to 692,031.95, 955,005.04 and 405,551.81

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Solution

The fourth proportional to 692,031.95, 955,005.04 and 405,551.81 is: 559,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,031.95 : 955,005.04 = 405,551.81 : x
  2. Step 2: Convert to fraction form
    692,031.95/955,005.04 = 405,551.81/x
  3. Step 3: Cross multiply
    692,031.95x = 955,005.04 × 405,551.81
  4. Step 4: Simplify right side
    692,031.95x = 387,304,023,144.35
  5. Step 5: Solve for x
    x = 387,304,023,144.35/692,031.95
  6. Step 6: Final answer
    x = 559,662.05

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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.