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Finding the Fourth Proportional to 1,572,984, 2,359,484.64 and 391,032

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Solution

The fourth proportional to 1,572,984, 2,359,484.64 and 391,032 is: 586,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,984 : 2,359,484.64 = 391,032 : x
  2. Step 2: Convert to fraction form
    1,572,984/2,359,484.64 = 391,032/x
  3. Step 3: Cross multiply
    1,572,984x = 2,359,484.64 × 391,032
  4. Step 4: Simplify right side
    1,572,984x = 922,633,997,748.48
  5. Step 5: Solve for x
    x = 922,633,997,748.48/1,572,984
  6. Step 6: Final answer
    x = 586,550.15

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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.