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Finding the Fourth Proportional to 869,547,797.98, 1,199,981,179.74 and 473,073,631.72

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Solution

The fourth proportional to 869,547,797.98, 1,199,981,179.74 and 473,073,631.72 is: 652,844,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,547,797.98 : 1,199,981,179.74 = 473,073,631.72 : x
  2. Step 2: Convert to fraction form
    869,547,797.98/1,199,981,179.74 = 473,073,631.72/x
  3. Step 3: Cross multiply
    869,547,797.98x = 1,199,981,179.74 × 473,073,631.72
  4. Step 4: Simplify right side
    869,547,797.98x = 567,679,454,695,251,904
  5. Step 5: Solve for x
    x = 567,679,454,695,251,904/869,547,797.98
  6. Step 6: Final answer
    x = 652,844,450.89

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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.