Home / 853,108.79-1,176,749.49-648,711.60

Finding the Fourth Proportional to 853,108.79, 1,176,749.49 and 648,711.60

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Solution

The fourth proportional to 853,108.79, 1,176,749.49 and 648,711.60 is: 894,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,108.79 : 1,176,749.49 = 648,711.60 : x
  2. Step 2: Convert to fraction form
    853,108.79/1,176,749.49 = 648,711.60/x
  3. Step 3: Cross multiply
    853,108.79x = 1,176,749.49 × 648,711.60
  4. Step 4: Simplify right side
    853,108.79x = 763,371,044,457.08
  5. Step 5: Solve for x
    x = 763,371,044,457.08/853,108.79
  6. Step 6: Final answer
    x = 894,810.91

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1.5x scale

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.