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Finding the Fourth Proportional to 553,668.30, 830,502.45 and 483,684.30

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Solution

The fourth proportional to 553,668.30, 830,502.45 and 483,684.30 is: 725,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,668.30 : 830,502.45 = 483,684.30 : x
  2. Step 2: Convert to fraction form
    553,668.30/830,502.45 = 483,684.30/x
  3. Step 3: Cross multiply
    553,668.30x = 830,502.45 × 483,684.30
  4. Step 4: Simplify right side
    553,668.30x = 401,700,996,176.54
  5. Step 5: Solve for x
    x = 401,700,996,176.54/553,668.30
  6. Step 6: Final answer
    x = 725,526.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.