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Finding the Fourth Proportional to 705,835.78, 974,058.73 and 383,547.61

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Solution

The fourth proportional to 705,835.78, 974,058.73 and 383,547.61 is: 529,298.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,835.78 : 974,058.73 = 383,547.61 : x
  2. Step 2: Convert to fraction form
    705,835.78/974,058.73 = 383,547.61/x
  3. Step 3: Cross multiply
    705,835.78x = 974,058.73 × 383,547.61
  4. Step 4: Simplify right side
    705,835.78x = 373,597,895,973.40
  5. Step 5: Solve for x
    x = 373,597,895,973.40/705,835.78
  6. Step 6: Final answer
    x = 529,298.61

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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.