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Finding the Fourth Proportional to 684,548,276.80, 1,026,822,415.20 and 684,548,276.80

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Solution

The fourth proportional to 684,548,276.80, 1,026,822,415.20 and 684,548,276.80 is: 1,026,822,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,548,276.80 : 1,026,822,415.20 = 684,548,276.80 : x
  2. Step 2: Convert to fraction form
    684,548,276.80/1,026,822,415.20 = 684,548,276.80/x
  3. Step 3: Cross multiply
    684,548,276.80x = 1,026,822,415.20 × 684,548,276.80
  4. Step 4: Simplify right side
    684,548,276.80x = 702,909,514,904,774,144
  5. Step 5: Solve for x
    x = 702,909,514,904,774,144/684,548,276.80
  6. Step 6: Final answer
    x = 1,026,822,415.20

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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.