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Finding the Fourth Proportional to 705,776.18, 973,977.06 and 383,486.28

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Solution

The fourth proportional to 705,776.18, 973,977.06 and 383,486.28 is: 529,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,776.18 : 973,977.06 = 383,486.28 : x
  2. Step 2: Convert to fraction form
    705,776.18/973,977.06 = 383,486.28/x
  3. Step 3: Cross multiply
    705,776.18x = 973,977.06 × 383,486.28
  4. Step 4: Simplify right side
    705,776.18x = 373,506,839,544.74
  5. Step 5: Solve for x
    x = 373,506,839,544.74/705,776.18
  6. Step 6: Final answer
    x = 529,214.29

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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.