Home / 438,155.20-657,232.80-171,924.40

Finding the Fourth Proportional to 438,155.20, 657,232.80 and 171,924.40

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Solution

The fourth proportional to 438,155.20, 657,232.80 and 171,924.40 is: 257,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,155.20 : 657,232.80 = 171,924.40 : x
  2. Step 2: Convert to fraction form
    438,155.20/657,232.80 = 171,924.40/x
  3. Step 3: Cross multiply
    438,155.20x = 657,232.80 × 171,924.40
  4. Step 4: Simplify right side
    438,155.20x = 112,994,354,800.32
  5. Step 5: Solve for x
    x = 112,994,354,800.32/438,155.20
  6. Step 6: Final answer
    x = 257,886.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.