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Finding the Fourth Proportional to 358,793,859.40, 502,651,525.40 and 358,793,859.40

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Solution

The fourth proportional to 358,793,859.40, 502,651,525.40 and 358,793,859.40 is: 502,651,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,793,859.40 : 502,651,525.40 = 358,793,859.40 : x
  2. Step 2: Convert to fraction form
    358,793,859.40/502,651,525.40 = 358,793,859.40/x
  3. Step 3: Cross multiply
    358,793,859.40x = 502,651,525.40 × 358,793,859.40
  4. Step 4: Simplify right side
    358,793,859.40x = 180,348,280,731,563,104
  5. Step 5: Solve for x
    x = 180,348,280,731,563,104/358,793,859.40
  6. Step 6: Final answer
    x = 502,651,525.40

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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.