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Finding the Fourth Proportional to 528,041.40, 792,062.10 and 403,625.40

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Solution

The fourth proportional to 528,041.40, 792,062.10 and 403,625.40 is: 605,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,041.40 : 792,062.10 = 403,625.40 : x
  2. Step 2: Convert to fraction form
    528,041.40/792,062.10 = 403,625.40/x
  3. Step 3: Cross multiply
    528,041.40x = 792,062.10 × 403,625.40
  4. Step 4: Simplify right side
    528,041.40x = 319,696,381,937.34
  5. Step 5: Solve for x
    x = 319,696,381,937.34/528,041.40
  6. Step 6: Final answer
    x = 605,438.10

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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.