Home / 648,101.08-894,130.04-405,962.11

Finding the Fourth Proportional to 648,101.08, 894,130.04 and 405,962.11

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Solution

The fourth proportional to 648,101.08, 894,130.04 and 405,962.11 is: 560,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,101.08 : 894,130.04 = 405,962.11 : x
  2. Step 2: Convert to fraction form
    648,101.08/894,130.04 = 405,962.11/x
  3. Step 3: Cross multiply
    648,101.08x = 894,130.04 × 405,962.11
  4. Step 4: Simplify right side
    648,101.08x = 362,982,911,711.16
  5. Step 5: Solve for x
    x = 362,982,911,711.16/648,101.08
  6. Step 6: Final answer
    x = 560,071.45

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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.