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Finding the Fourth Proportional to 343,630, 474,416.76 and 224,605.36

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Solution

The fourth proportional to 343,630, 474,416.76 and 224,605.36 is: 310,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,630 : 474,416.76 = 224,605.36 : x
  2. Step 2: Convert to fraction form
    343,630/474,416.76 = 224,605.36/x
  3. Step 3: Cross multiply
    343,630x = 474,416.76 × 224,605.36
  4. Step 4: Simplify right side
    343,630x = 106,556,547,169.83
  5. Step 5: Solve for x
    x = 106,556,547,169.83/343,630
  6. Step 6: Final answer
    x = 310,090.93

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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.