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Finding the Fourth Proportional to 316,980,554.10, 442,865,783.10 and 316,980,554.10

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Solution

The fourth proportional to 316,980,554.10, 442,865,783.10 and 316,980,554.10 is: 442,865,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,980,554.10 : 442,865,783.10 = 316,980,554.10 : x
  2. Step 2: Convert to fraction form
    316,980,554.10/442,865,783.10 = 316,980,554.10/x
  3. Step 3: Cross multiply
    316,980,554.10x = 442,865,783.10 × 316,980,554.10
  4. Step 4: Simplify right side
    316,980,554.10x = 140,379,841,318,968,432
  5. Step 5: Solve for x
    x = 140,379,841,318,968,432/316,980,554.10
  6. Step 6: Final answer
    x = 442,865,783.10

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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.