Home / 691,157.46-953,681.68-385,166.76

Finding the Fourth Proportional to 691,157.46, 953,681.68 and 385,166.76

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Solution

The fourth proportional to 691,157.46, 953,681.68 and 385,166.76 is: 531,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,157.46 : 953,681.68 = 385,166.76 : x
  2. Step 2: Convert to fraction form
    691,157.46/953,681.68 = 385,166.76/x
  3. Step 3: Cross multiply
    691,157.46x = 953,681.68 × 385,166.76
  4. Step 4: Simplify right side
    691,157.46x = 367,326,482,756.96
  5. Step 5: Solve for x
    x = 367,326,482,756.96/691,157.46
  6. Step 6: Final answer
    x = 531,465.70

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Double scale
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Similar ratio
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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.