Home / 654,219,937.20-981,329,905.80-436,541,703.60

Finding the Fourth Proportional to 654,219,937.20, 981,329,905.80 and 436,541,703.60

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Solution

The fourth proportional to 654,219,937.20, 981,329,905.80 and 436,541,703.60 is: 654,812,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,219,937.20 : 981,329,905.80 = 436,541,703.60 : x
  2. Step 2: Convert to fraction form
    654,219,937.20/981,329,905.80 = 436,541,703.60/x
  3. Step 3: Cross multiply
    654,219,937.20x = 981,329,905.80 × 436,541,703.60
  4. Step 4: Simplify right side
    654,219,937.20x = 428,391,428,871,559,552
  5. Step 5: Solve for x
    x = 428,391,428,871,559,552/654,219,937.20
  6. Step 6: Final answer
    x = 654,812,555.40

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Double scale
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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.