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Finding the Fourth Proportional to 555,263.34, 765,873.68 and 383,250.32

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Solution

The fourth proportional to 555,263.34, 765,873.68 and 383,250.32 is: 528,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,263.34 : 765,873.68 = 383,250.32 : x
  2. Step 2: Convert to fraction form
    555,263.34/765,873.68 = 383,250.32/x
  3. Step 3: Cross multiply
    555,263.34x = 765,873.68 × 383,250.32
  4. Step 4: Simplify right side
    555,263.34x = 293,521,332,221.77
  5. Step 5: Solve for x
    x = 293,521,332,221.77/555,263.34
  6. Step 6: Final answer
    x = 528,616.45

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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.