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Finding the Fourth Proportional to 679,062.77, 937,106.36 and 373,158.86

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Solution

The fourth proportional to 679,062.77, 937,106.36 and 373,158.86 is: 514,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,062.77 : 937,106.36 = 373,158.86 : x
  2. Step 2: Convert to fraction form
    679,062.77/937,106.36 = 373,158.86/x
  3. Step 3: Cross multiply
    679,062.77x = 937,106.36 × 373,158.86
  4. Step 4: Simplify right side
    679,062.77x = 349,689,534,445.02
  5. Step 5: Solve for x
    x = 349,689,534,445.02/679,062.77
  6. Step 6: Final answer
    x = 514,959.08

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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.