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Finding the Fourth Proportional to 705,987.36, 974,268.95 and 383,698.22

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Solution

The fourth proportional to 705,987.36, 974,268.95 and 383,698.22 is: 529,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,987.36 : 974,268.95 = 383,698.22 : x
  2. Step 2: Convert to fraction form
    705,987.36/974,268.95 = 383,698.22/x
  3. Step 3: Cross multiply
    705,987.36x = 974,268.95 × 383,698.22
  4. Step 4: Simplify right side
    705,987.36x = 373,825,255,126.43
  5. Step 5: Solve for x
    x = 373,825,255,126.43/705,987.36
  6. Step 6: Final answer
    x = 529,507.01

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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.