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Finding the Fourth Proportional to 705,988.36, 974,270.33 and 383,699.22

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Solution

The fourth proportional to 705,988.36, 974,270.33 and 383,699.22 is: 529,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,988.36 : 974,270.33 = 383,699.22 : x
  2. Step 2: Convert to fraction form
    705,988.36/974,270.33 = 383,699.22/x
  3. Step 3: Cross multiply
    705,988.36x = 974,270.33 × 383,699.22
  4. Step 4: Simplify right side
    705,988.36x = 373,826,765,690.14
  5. Step 5: Solve for x
    x = 373,826,765,690.14/705,988.36
  6. Step 6: Final answer
    x = 529,508.40

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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.