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Finding the Fourth Proportional to 853,480.70, 1,177,794.51 and 471,482.54

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Solution

The fourth proportional to 853,480.70, 1,177,794.51 and 471,482.54 is: 650,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,480.70 : 1,177,794.51 = 471,482.54 : x
  2. Step 2: Convert to fraction form
    853,480.70/1,177,794.51 = 471,482.54/x
  3. Step 3: Cross multiply
    853,480.70x = 1,177,794.51 × 471,482.54
  4. Step 4: Simplify right side
    853,480.70x = 555,309,547,172.86
  5. Step 5: Solve for x
    x = 555,309,547,172.86/853,480.70
  6. Step 6: Final answer
    x = 650,641.01

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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.