Home / 670,577.32-925,421.03-384,152.76

Finding the Fourth Proportional to 670,577.32, 925,421.03 and 384,152.76

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Solution

The fourth proportional to 670,577.32, 925,421.03 and 384,152.76 is: 530,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,577.32 : 925,421.03 = 384,152.76 : x
  2. Step 2: Convert to fraction form
    670,577.32/925,421.03 = 384,152.76/x
  3. Step 3: Cross multiply
    670,577.32x = 925,421.03 × 384,152.76
  4. Step 4: Simplify right side
    670,577.32x = 355,503,042,836.54
  5. Step 5: Solve for x
    x = 355,503,042,836.54/670,577.32
  6. Step 6: Final answer
    x = 530,144.75

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Double scale
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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.