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Finding the Fourth Proportional to 553,761,026.60, 830,641,539.90 and 553,761,026.60

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Solution

The fourth proportional to 553,761,026.60, 830,641,539.90 and 553,761,026.60 is: 830,641,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,761,026.60 : 830,641,539.90 = 553,761,026.60 : x
  2. Step 2: Convert to fraction form
    553,761,026.60/830,641,539.90 = 553,761,026.60/x
  3. Step 3: Cross multiply
    553,761,026.60x = 830,641,539.90 × 553,761,026.60
  4. Step 4: Simplify right side
    553,761,026.60x = 459,976,911,871,628,864
  5. Step 5: Solve for x
    x = 459,976,911,871,628,864/553,761,026.60
  6. Step 6: Final answer
    x = 830,641,539.90

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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.