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Finding the Fourth Proportional to 1,062,884,005.20, 1,594,326,007.80 and 787,384,990.80

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Solution

The fourth proportional to 1,062,884,005.20, 1,594,326,007.80 and 787,384,990.80 is: 1,181,077,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062,884,005.20 : 1,594,326,007.80 = 787,384,990.80 : x
  2. Step 2: Convert to fraction form
    1,062,884,005.20/1,594,326,007.80 = 787,384,990.80/x
  3. Step 3: Cross multiply
    1,062,884,005.20x = 1,594,326,007.80 × 787,384,990.80
  4. Step 4: Simplify right side
    1,062,884,005.20x = 1,255,348,368,983,803,648
  5. Step 5: Solve for x
    x = 1,255,348,368,983,803,648/1,062,884,005.20
  6. Step 6: Final answer
    x = 1,181,077,486.20

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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.