Home / 578,123.68-867,211.44-253,890.40

Finding the Fourth Proportional to 578,123.68, 867,211.44 and 253,890.40

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Solution

The fourth proportional to 578,123.68, 867,211.44 and 253,890.40 is: 380,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,123.68 : 867,211.44 = 253,890.40 : x
  2. Step 2: Convert to fraction form
    578,123.68/867,211.44 = 253,890.40/x
  3. Step 3: Cross multiply
    578,123.68x = 867,211.44 × 253,890.40
  4. Step 4: Simplify right side
    578,123.68x = 220,176,659,386.18
  5. Step 5: Solve for x
    x = 220,176,659,386.18/578,123.68
  6. Step 6: Final answer
    x = 380,846.98

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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.