Home / 581,623.40-872,435.10-413,661.80

Finding the Fourth Proportional to 581,623.40, 872,435.10 and 413,661.80

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Solution

The fourth proportional to 581,623.40, 872,435.10 and 413,661.80 is: 620,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,623.40 : 872,435.10 = 413,661.80 : x
  2. Step 2: Convert to fraction form
    581,623.40/872,435.10 = 413,661.80/x
  3. Step 3: Cross multiply
    581,623.40x = 872,435.10 × 413,661.80
  4. Step 4: Simplify right side
    581,623.40x = 360,893,073,849.18
  5. Step 5: Solve for x
    x = 360,893,073,849.18/581,623.40
  6. Step 6: Final answer
    x = 620,492.70

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Double scale
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Similar ratio
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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.