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Finding the Fourth Proportional to 567,751,718.60, 783,464,678.32 and 316,836,432.08

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Solution

The fourth proportional to 567,751,718.60, 783,464,678.32 and 316,836,432.08 is: 437,216,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,751,718.60 : 783,464,678.32 = 316,836,432.08 : x
  2. Step 2: Convert to fraction form
    567,751,718.60/783,464,678.32 = 316,836,432.08/x
  3. Step 3: Cross multiply
    567,751,718.60x = 783,464,678.32 × 316,836,432.08
  4. Step 4: Simplify right side
    567,751,718.60x = 248,230,153,339,613,728
  5. Step 5: Solve for x
    x = 248,230,153,339,613,728/567,751,718.60
  6. Step 6: Final answer
    x = 437,216,031.60

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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.