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Finding the Fourth Proportional to 705,605.64, 973,737.66 and 383,313.12

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Solution

The fourth proportional to 705,605.64, 973,737.66 and 383,313.12 is: 528,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,605.64 : 973,737.66 = 383,313.12 : x
  2. Step 2: Convert to fraction form
    705,605.64/973,737.66 = 383,313.12/x
  3. Step 3: Cross multiply
    705,605.64x = 973,737.66 × 383,313.12
  4. Step 4: Simplify right side
    705,605.64x = 373,246,420,516.10
  5. Step 5: Solve for x
    x = 373,246,420,516.10/705,605.64
  6. Step 6: Final answer
    x = 528,973.13

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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.