Home / 615,280.55-849,087.34-339,638.59

Finding the Fourth Proportional to 615,280.55, 849,087.34 and 339,638.59

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Solution

The fourth proportional to 615,280.55, 849,087.34 and 339,638.59 is: 468,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,280.55 : 849,087.34 = 339,638.59 : x
  2. Step 2: Convert to fraction form
    615,280.55/849,087.34 = 339,638.59/x
  3. Step 3: Cross multiply
    615,280.55x = 849,087.34 × 339,638.59
  4. Step 4: Simplify right side
    615,280.55x = 288,382,826,944.45
  5. Step 5: Solve for x
    x = 288,382,826,944.45/615,280.55
  6. Step 6: Final answer
    x = 468,701.35

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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.