Home / 648,490.69-888,428.10-624,240.11

Finding the Fourth Proportional to 648,490.69, 888,428.10 and 624,240.11

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Solution

The fourth proportional to 648,490.69, 888,428.10 and 624,240.11 is: 855,204.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,490.69 : 888,428.10 = 624,240.11 : x
  2. Step 2: Convert to fraction form
    648,490.69/888,428.10 = 624,240.11/x
  3. Step 3: Cross multiply
    648,490.69x = 888,428.10 × 624,240.11
  4. Step 4: Simplify right side
    648,490.69x = 554,592,454,871.09
  5. Step 5: Solve for x
    x = 554,592,454,871.09/648,490.69
  6. Step 6: Final answer
    x = 855,204.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.