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Finding the Fourth Proportional to 832,497.68, 1,248,694.68 and 512,710.40

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Solution

The fourth proportional to 832,497.68, 1,248,694.68 and 512,710.40 is: 769,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,497.68 : 1,248,694.68 = 512,710.40 : x
  2. Step 2: Convert to fraction form
    832,497.68/1,248,694.68 = 512,710.40/x
  3. Step 3: Cross multiply
    832,497.68x = 1,248,694.68 × 512,710.40
  4. Step 4: Simplify right side
    832,497.68x = 640,218,748,860.67
  5. Step 5: Solve for x
    x = 640,218,748,860.67/832,497.68
  6. Step 6: Final answer
    x = 769,033.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.