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Finding the Fourth Proportional to 631,045,678.94, 950,875,866.41 and 518,550,248.06

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Solution

The fourth proportional to 631,045,678.94, 950,875,866.41 and 518,550,248.06 is: 781,364,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,045,678.94 : 950,875,866.41 = 518,550,248.06 : x
  2. Step 2: Convert to fraction form
    631,045,678.94/950,875,866.41 = 518,550,248.06/x
  3. Step 3: Cross multiply
    631,045,678.94x = 950,875,866.41 × 518,550,248.06
  4. Step 4: Simplify right side
    631,045,678.94x = 493,076,916,400,305,792
  5. Step 5: Solve for x
    x = 493,076,916,400,305,792/631,045,678.94
  6. Step 6: Final answer
    x = 781,364,856.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.