Home / 630,106.64-869,055.72-403,773.20

Finding the Fourth Proportional to 630,106.64, 869,055.72 and 403,773.20

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Solution

The fourth proportional to 630,106.64, 869,055.72 and 403,773.20 is: 556,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,106.64 : 869,055.72 = 403,773.20 : x
  2. Step 2: Convert to fraction form
    630,106.64/869,055.72 = 403,773.20/x
  3. Step 3: Cross multiply
    630,106.64x = 869,055.72 × 403,773.20
  4. Step 4: Simplify right side
    630,106.64x = 350,901,409,042.70
  5. Step 5: Solve for x
    x = 350,901,409,042.70/630,106.64
  6. Step 6: Final answer
    x = 556,892.10

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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.