Home / 691,091.16-953,734.86-385,167.72

Finding the Fourth Proportional to 691,091.16, 953,734.86 and 385,167.72

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Solution

The fourth proportional to 691,091.16, 953,734.86 and 385,167.72 is: 531,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,091.16 : 953,734.86 = 385,167.72 : x
  2. Step 2: Convert to fraction form
    691,091.16/953,734.86 = 385,167.72/x
  3. Step 3: Cross multiply
    691,091.16x = 953,734.86 × 385,167.72
  4. Step 4: Simplify right side
    691,091.16x = 367,347,881,510.72
  5. Step 5: Solve for x
    x = 367,347,881,510.72/691,091.16
  6. Step 6: Final answer
    x = 531,547.65

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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.