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Finding the Fourth Proportional to 673,986,886.40, 1,010,980,329.62 and 673,986,886.40

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Solution

The fourth proportional to 673,986,886.40, 1,010,980,329.62 and 673,986,886.40 is: 1,010,980,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,986,886.40 : 1,010,980,329.62 = 673,986,886.40 : x
  2. Step 2: Convert to fraction form
    673,986,886.40/1,010,980,329.62 = 673,986,886.40/x
  3. Step 3: Cross multiply
    673,986,886.40x = 1,010,980,329.62 × 673,986,886.40
  4. Step 4: Simplify right side
    673,986,886.40x = 681,387,484,572,229,504
  5. Step 5: Solve for x
    x = 681,387,484,572,229,504/673,986,886.40
  6. Step 6: Final answer
    x = 1,010,980,329.62

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1.5x scale

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.