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Finding the Fourth Proportional to 530,465.51, 732,058.91 and 288,764.19

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Solution

The fourth proportional to 530,465.51, 732,058.91 and 288,764.19 is: 398,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,465.51 : 732,058.91 = 288,764.19 : x
  2. Step 2: Convert to fraction form
    530,465.51/732,058.91 = 288,764.19/x
  3. Step 3: Cross multiply
    530,465.51x = 732,058.91 × 288,764.19
  4. Step 4: Simplify right side
    530,465.51x = 211,392,396,734.61
  5. Step 5: Solve for x
    x = 211,392,396,734.61/530,465.51
  6. Step 6: Final answer
    x = 398,503.57

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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.