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Finding the Fourth Proportional to 856,711,728.07, 1,181,827,074.77 and 559,527,927.94

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Solution

The fourth proportional to 856,711,728.07, 1,181,827,074.77 and 559,527,927.94 is: 771,864,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,711,728.07 : 1,181,827,074.77 = 559,527,927.94 : x
  2. Step 2: Convert to fraction form
    856,711,728.07/1,181,827,074.77 = 559,527,927.94/x
  3. Step 3: Cross multiply
    856,711,728.07x = 1,181,827,074.77 × 559,527,927.94
  4. Step 4: Simplify right side
    856,711,728.07x = 661,265,254,320,742,784
  5. Step 5: Solve for x
    x = 661,265,254,320,742,784/856,711,728.07
  6. Step 6: Final answer
    x = 771,864,365.41

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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.