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Finding the Fourth Proportional to 358,789,990.60, 503,666,475.80 and 358,789,990.60

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Solution

The fourth proportional to 358,789,990.60, 503,666,475.80 and 358,789,990.60 is: 503,666,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,789,990.60 : 503,666,475.80 = 358,789,990.60 : x
  2. Step 2: Convert to fraction form
    358,789,990.60/503,666,475.80 = 358,789,990.60/x
  3. Step 3: Cross multiply
    358,789,990.60x = 503,666,475.80 × 358,789,990.60
  4. Step 4: Simplify right side
    358,789,990.60x = 180,710,490,117,817,152
  5. Step 5: Solve for x
    x = 180,710,490,117,817,152/358,789,990.60
  6. Step 6: Final answer
    x = 503,666,475.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.