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Finding the Fourth Proportional to 559,874,632.40, 839,811,948.60 and 519,059,963.60

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Solution

The fourth proportional to 559,874,632.40, 839,811,948.60 and 519,059,963.60 is: 778,589,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,874,632.40 : 839,811,948.60 = 519,059,963.60 : x
  2. Step 2: Convert to fraction form
    559,874,632.40/839,811,948.60 = 519,059,963.60/x
  3. Step 3: Cross multiply
    559,874,632.40x = 839,811,948.60 × 519,059,963.60
  4. Step 4: Simplify right side
    559,874,632.40x = 435,912,759,471,161,088
  5. Step 5: Solve for x
    x = 435,912,759,471,161,088/559,874,632.40
  6. Step 6: Final answer
    x = 778,589,945.40

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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.