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Finding the Fourth Proportional to 630,517,266.79, 945,866,159.04 and 193,854,611.10

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Solution

The fourth proportional to 630,517,266.79, 945,866,159.04 and 193,854,611.10 is: 290,809,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,517,266.79 : 945,866,159.04 = 193,854,611.10 : x
  2. Step 2: Convert to fraction form
    630,517,266.79/945,866,159.04 = 193,854,611.10/x
  3. Step 3: Cross multiply
    630,517,266.79x = 945,866,159.04 × 193,854,611.10
  4. Step 4: Simplify right side
    630,517,266.79x = 183,360,516,416,549,696
  5. Step 5: Solve for x
    x = 183,360,516,416,549,696/630,517,266.79
  6. Step 6: Final answer
    x = 290,809,667.04

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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.