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Finding the Fourth Proportional to 6,385,698.55, 9,578,547.83 and 6,385,698.55

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Solution

The fourth proportional to 6,385,698.55, 9,578,547.83 and 6,385,698.55 is: 9,578,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385,698.55 : 9,578,547.83 = 6,385,698.55 : x
  2. Step 2: Convert to fraction form
    6,385,698.55/9,578,547.83 = 6,385,698.55/x
  3. Step 3: Cross multiply
    6,385,698.55x = 9,578,547.83 × 6,385,698.55
  4. Step 4: Simplify right side
    6,385,698.55x = 61,165,718,989,136.65
  5. Step 5: Solve for x
    x = 61,165,718,989,136.65/6,385,698.55
  6. Step 6: Final answer
    x = 9,578,547.83

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Similar ratio
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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.