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Finding the Fourth Proportional to 558,010.11, 770,114.07 and 316,266.69

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Solution

The fourth proportional to 558,010.11, 770,114.07 and 316,266.69 is: 436,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,010.11 : 770,114.07 = 316,266.69 : x
  2. Step 2: Convert to fraction form
    558,010.11/770,114.07 = 316,266.69/x
  3. Step 3: Cross multiply
    558,010.11x = 770,114.07 × 316,266.69
  4. Step 4: Simplify right side
    558,010.11x = 243,561,427,841.33
  5. Step 5: Solve for x
    x = 243,561,427,841.33/558,010.11
  6. Step 6: Final answer
    x = 436,482.11

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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.