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Finding the Fourth Proportional to 761,136,719.30, 1,063,295,581.90 and 761,136,719.30

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Solution

The fourth proportional to 761,136,719.30, 1,063,295,581.90 and 761,136,719.30 is: 1,063,295,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,136,719.30 : 1,063,295,581.90 = 761,136,719.30 : x
  2. Step 2: Convert to fraction form
    761,136,719.30/1,063,295,581.90 = 761,136,719.30/x
  3. Step 3: Cross multiply
    761,136,719.30x = 1,063,295,581.90 × 761,136,719.30
  4. Step 4: Simplify right side
    761,136,719.30x = 809,313,310,853,550,336
  5. Step 5: Solve for x
    x = 809,313,310,853,550,336/761,136,719.30
  6. Step 6: Final answer
    x = 1,063,295,581.90

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1.5x scale

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.