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Finding the Fourth Proportional to 530,784.51, 732,477.52 and 289,071.12

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Solution

The fourth proportional to 530,784.51, 732,477.52 and 289,071.12 is: 398,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,784.51 : 732,477.52 = 289,071.12 : x
  2. Step 2: Convert to fraction form
    530,784.51/732,477.52 = 289,071.12/x
  3. Step 3: Cross multiply
    530,784.51x = 732,477.52 × 289,071.12
  4. Step 4: Simplify right side
    530,784.51x = 211,738,100,189.35
  5. Step 5: Solve for x
    x = 211,738,100,189.35/530,784.51
  6. Step 6: Final answer
    x = 398,915.37

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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.