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Finding the Fourth Proportional to 403,397.30, 556,688.26 and 224,549.30

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Solution

The fourth proportional to 403,397.30, 556,688.26 and 224,549.30 is: 309,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,397.30 : 556,688.26 = 224,549.30 : x
  2. Step 2: Convert to fraction form
    403,397.30/556,688.26 = 224,549.30/x
  3. Step 3: Cross multiply
    403,397.30x = 556,688.26 × 224,549.30
  4. Step 4: Simplify right side
    403,397.30x = 125,003,959,101.22
  5. Step 5: Solve for x
    x = 125,003,959,101.22/403,397.30
  6. Step 6: Final answer
    x = 309,878.03

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1.5x scale

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.