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Finding the Fourth Proportional to 898,566,006.83, 1,240,068,990.00 and 502,098,620.54

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Solution

The fourth proportional to 898,566,006.83, 1,240,068,990.00 and 502,098,620.54 is: 692,922,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,566,006.83 : 1,240,068,990.00 = 502,098,620.54 : x
  2. Step 2: Convert to fraction form
    898,566,006.83/1,240,068,990.00 = 502,098,620.54/x
  3. Step 3: Cross multiply
    898,566,006.83x = 1,240,068,990.00 × 502,098,620.54
  4. Step 4: Simplify right side
    898,566,006.83x = 622,636,929,249,138,688
  5. Step 5: Solve for x
    x = 622,636,929,249,138,688/898,566,006.83
  6. Step 6: Final answer
    x = 692,922,862.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.