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Finding the Fourth Proportional to 708,751,569.20, 1,063,127,353.80 and 191,181,009.20

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Solution

The fourth proportional to 708,751,569.20, 1,063,127,353.80 and 191,181,009.20 is: 286,771,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,751,569.20 : 1,063,127,353.80 = 191,181,009.20 : x
  2. Step 2: Convert to fraction form
    708,751,569.20/1,063,127,353.80 = 191,181,009.20/x
  3. Step 3: Cross multiply
    708,751,569.20x = 1,063,127,353.80 × 191,181,009.20
  4. Step 4: Simplify right side
    708,751,569.20x = 203,249,760,407,609,440
  5. Step 5: Solve for x
    x = 203,249,760,407,609,440/708,751,569.20
  6. Step 6: Final answer
    x = 286,771,513.80

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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.