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Finding the Fourth Proportional to 706,088.61, 974,408.81 and 383,799.47

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Solution

The fourth proportional to 706,088.61, 974,408.81 and 383,799.47 is: 529,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,088.61 : 974,408.81 = 383,799.47 : x
  2. Step 2: Convert to fraction form
    706,088.61/974,408.81 = 383,799.47/x
  3. Step 3: Cross multiply
    706,088.61x = 974,408.81 × 383,799.47
  4. Step 4: Simplify right side
    706,088.61x = 373,977,578,050.29
  5. Step 5: Solve for x
    x = 373,977,578,050.29/706,088.61
  6. Step 6: Final answer
    x = 529,646.81

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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.