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Finding the Fourth Proportional to 1,036,657.65, 1,554,986.48 and 977,608.65

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Solution

The fourth proportional to 1,036,657.65, 1,554,986.48 and 977,608.65 is: 1,466,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,657.65 : 1,554,986.48 = 977,608.65 : x
  2. Step 2: Convert to fraction form
    1,036,657.65/1,554,986.48 = 977,608.65/x
  3. Step 3: Cross multiply
    1,036,657.65x = 1,554,986.48 × 977,608.65
  4. Step 4: Simplify right side
    1,036,657.65x = 1,520,168,228,593.01
  5. Step 5: Solve for x
    x = 1,520,168,228,593.01/1,036,657.65
  6. Step 6: Final answer
    x = 1,466,412.98

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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.