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Finding the Fourth Proportional to 1,572,794, 2,359,191.16 and 390,842

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Solution

The fourth proportional to 1,572,794, 2,359,191.16 and 390,842 is: 586,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,794 : 2,359,191.16 = 390,842 : x
  2. Step 2: Convert to fraction form
    1,572,794/2,359,191.16 = 390,842/x
  3. Step 3: Cross multiply
    1,572,794x = 2,359,191.16 × 390,842
  4. Step 4: Simplify right side
    1,572,794x = 922,070,991,356.72
  5. Step 5: Solve for x
    x = 922,070,991,356.72/1,572,794
  6. Step 6: Final answer
    x = 586,263.04

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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.