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Finding the Fourth Proportional to 1,918,748.70, 2,877,345.45 and 655,926.30

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Solution

The fourth proportional to 1,918,748.70, 2,877,345.45 and 655,926.30 is: 983,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,748.70 : 2,877,345.45 = 655,926.30 : x
  2. Step 2: Convert to fraction form
    1,918,748.70/2,877,345.45 = 655,926.30/x
  3. Step 3: Cross multiply
    1,918,748.70x = 2,877,345.45 × 655,926.30
  4. Step 4: Simplify right side
    1,918,748.70x = 1,887,326,554,840.34
  5. Step 5: Solve for x
    x = 1,887,326,554,840.34/1,918,748.70
  6. Step 6: Final answer
    x = 983,623.63

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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.