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Finding the Fourth Proportional to 1,140,507, 1,573,899.66 and 663,579

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Solution

The fourth proportional to 1,140,507, 1,573,899.66 and 663,579 is: 915,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,507 : 1,573,899.66 = 663,579 : x
  2. Step 2: Convert to fraction form
    1,140,507/1,573,899.66 = 663,579/x
  3. Step 3: Cross multiply
    1,140,507x = 1,573,899.66 × 663,579
  4. Step 4: Simplify right side
    1,140,507x = 1,044,406,762,483.14
  5. Step 5: Solve for x
    x = 1,044,406,762,483.14/1,140,507
  6. Step 6: Final answer
    x = 915,739.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.