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Finding the Fourth Proportional to 743,232, 1,025,678.88 and 403,700.16

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Solution

The fourth proportional to 743,232, 1,025,678.88 and 403,700.16 is: 557,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,232 : 1,025,678.88 = 403,700.16 : x
  2. Step 2: Convert to fraction form
    743,232/1,025,678.88 = 403,700.16/x
  3. Step 3: Cross multiply
    743,232x = 1,025,678.88 × 403,700.16
  4. Step 4: Simplify right side
    743,232x = 414,066,727,964.62
  5. Step 5: Solve for x
    x = 414,066,727,964.62/743,232
  6. Step 6: Final answer
    x = 557,116.39

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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.