Home / 853,378.56-1,177,613.52-509,602.40

Finding the Fourth Proportional to 853,378.56, 1,177,613.52 and 509,602.40

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Solution

The fourth proportional to 853,378.56, 1,177,613.52 and 509,602.40 is: 703,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,378.56 : 1,177,613.52 = 509,602.40 : x
  2. Step 2: Convert to fraction form
    853,378.56/1,177,613.52 = 509,602.40/x
  3. Step 3: Cross multiply
    853,378.56x = 1,177,613.52 × 509,602.40
  4. Step 4: Simplify right side
    853,378.56x = 600,114,676,064.45
  5. Step 5: Solve for x
    x = 600,114,676,064.45/853,378.56
  6. Step 6: Final answer
    x = 703,222.12

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Double scale
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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.