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Finding the Fourth Proportional to 705,323.92, 973,344 and 383,031.76

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Solution

The fourth proportional to 705,323.92, 973,344 and 383,031.76 is: 528,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,323.92 : 973,344 = 383,031.76 : x
  2. Step 2: Convert to fraction form
    705,323.92/973,344 = 383,031.76/x
  3. Step 3: Cross multiply
    705,323.92x = 973,344 × 383,031.76
  4. Step 4: Simplify right side
    705,323.92x = 372,821,665,405.44
  5. Step 5: Solve for x
    x = 372,821,665,405.44/705,323.92
  6. Step 6: Final answer
    x = 528,582.19

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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.