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Finding the Fourth Proportional to 2,547,887.04, 3,822,421.04 and 864,990.48

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Solution

The fourth proportional to 2,547,887.04, 3,822,421.04 and 864,990.48 is: 1,297,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547,887.04 : 3,822,421.04 = 864,990.48 : x
  2. Step 2: Convert to fraction form
    2,547,887.04/3,822,421.04 = 864,990.48/x
  3. Step 3: Cross multiply
    2,547,887.04x = 3,822,421.04 × 864,990.48
  4. Step 4: Simplify right side
    2,547,887.04x = 3,306,357,810,151.70
  5. Step 5: Solve for x
    x = 3,306,357,810,151.70/2,547,887.04
  6. Step 6: Final answer
    x = 1,297,686.18

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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.