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Finding the Fourth Proportional to 1,316,188.62, 1,973,890.62 and 558,017.91

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Solution

The fourth proportional to 1,316,188.62, 1,973,890.62 and 558,017.91 is: 836,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,188.62 : 1,973,890.62 = 558,017.91 : x
  2. Step 2: Convert to fraction form
    1,316,188.62/1,973,890.62 = 558,017.91/x
  3. Step 3: Cross multiply
    1,316,188.62x = 1,973,890.62 × 558,017.91
  4. Step 4: Simplify right side
    1,316,188.62x = 1,101,466,318,341.00
  5. Step 5: Solve for x
    x = 1,101,466,318,341.00/1,316,188.62
  6. Step 6: Final answer
    x = 836,860.54

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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.