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Finding the Fourth Proportional to 358,792,205.40, 502,649,209.80 and 358,792,205.40

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Solution

The fourth proportional to 358,792,205.40, 502,649,209.80 and 358,792,205.40 is: 502,649,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,792,205.40 : 502,649,209.80 = 358,792,205.40 : x
  2. Step 2: Convert to fraction form
    358,792,205.40/502,649,209.80 = 358,792,205.40/x
  3. Step 3: Cross multiply
    358,792,205.40x = 502,649,209.80 × 358,792,205.40
  4. Step 4: Simplify right side
    358,792,205.40x = 180,346,618,526,709,280
  5. Step 5: Solve for x
    x = 180,346,618,526,709,280/358,792,205.40
  6. Step 6: Final answer
    x = 502,649,209.80

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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.