Home / 437,928.57-604,341.89-256,604.40

Finding the Fourth Proportional to 437,928.57, 604,341.89 and 256,604.40

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Solution

The fourth proportional to 437,928.57, 604,341.89 and 256,604.40 is: 354,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,928.57 : 604,341.89 = 256,604.40 : x
  2. Step 2: Convert to fraction form
    437,928.57/604,341.89 = 256,604.40/x
  3. Step 3: Cross multiply
    437,928.57x = 604,341.89 × 256,604.40
  4. Step 4: Simplify right side
    437,928.57x = 155,076,788,078.32
  5. Step 5: Solve for x
    x = 155,076,788,078.32/437,928.57
  6. Step 6: Final answer
    x = 354,114.34

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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.