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Finding the Fourth Proportional to 473,062.20, 709,593.30 and 402,203.40

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Solution

The fourth proportional to 473,062.20, 709,593.30 and 402,203.40 is: 603,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,062.20 : 709,593.30 = 402,203.40 : x
  2. Step 2: Convert to fraction form
    473,062.20/709,593.30 = 402,203.40/x
  3. Step 3: Cross multiply
    473,062.20x = 709,593.30 × 402,203.40
  4. Step 4: Simplify right side
    473,062.20x = 285,400,837,877.22
  5. Step 5: Solve for x
    x = 285,400,837,877.22/473,062.20
  6. Step 6: Final answer
    x = 603,305.10

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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.