Home / 688,201.80-1,032,302.70-436,259.40

Finding the Fourth Proportional to 688,201.80, 1,032,302.70 and 436,259.40

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Solution

The fourth proportional to 688,201.80, 1,032,302.70 and 436,259.40 is: 654,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,201.80 : 1,032,302.70 = 436,259.40 : x
  2. Step 2: Convert to fraction form
    688,201.80/1,032,302.70 = 436,259.40/x
  3. Step 3: Cross multiply
    688,201.80x = 1,032,302.70 × 436,259.40
  4. Step 4: Simplify right side
    688,201.80x = 450,351,756,520.38
  5. Step 5: Solve for x
    x = 450,351,756,520.38/688,201.80
  6. Step 6: Final answer
    x = 654,389.10

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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.