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Finding the Fourth Proportional to 570,657,054.65, 855,715,746.36 and 221,066,861.12

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Solution

The fourth proportional to 570,657,054.65, 855,715,746.36 and 221,066,861.12 is: 331,495,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,657,054.65 : 855,715,746.36 = 221,066,861.12 : x
  2. Step 2: Convert to fraction form
    570,657,054.65/855,715,746.36 = 221,066,861.12/x
  3. Step 3: Cross multiply
    570,657,054.65x = 855,715,746.36 × 221,066,861.12
  4. Step 4: Simplify right side
    570,657,054.65x = 189,170,394,058,763,264
  5. Step 5: Solve for x
    x = 189,170,394,058,763,264/570,657,054.65
  6. Step 6: Final answer
    x = 331,495,760.05

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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.