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Finding the Fourth Proportional to 1,036,656.65, 1,554,984.98 and 977,607.65

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Solution

The fourth proportional to 1,036,656.65, 1,554,984.98 and 977,607.65 is: 1,466,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,656.65 : 1,554,984.98 = 977,607.65 : x
  2. Step 2: Convert to fraction form
    1,036,656.65/1,554,984.98 = 977,607.65/x
  3. Step 3: Cross multiply
    1,036,656.65x = 1,554,984.98 × 977,607.65
  4. Step 4: Simplify right side
    1,036,656.65x = 1,520,165,207,195.06
  5. Step 5: Solve for x
    x = 1,520,165,207,195.06/1,036,656.65
  6. Step 6: Final answer
    x = 1,466,411.48

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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.