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Finding the Fourth Proportional to 530,689.77, 732,341.39 and 288,975.24

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Solution

The fourth proportional to 530,689.77, 732,341.39 and 288,975.24 is: 398,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,689.77 : 732,341.39 = 288,975.24 : x
  2. Step 2: Convert to fraction form
    530,689.77/732,341.39 = 288,975.24/x
  3. Step 3: Cross multiply
    530,689.77x = 732,341.39 × 288,975.24
  4. Step 4: Simplify right side
    530,689.77x = 211,628,527,492.31
  5. Step 5: Solve for x
    x = 211,628,527,492.31/530,689.77
  6. Step 6: Final answer
    x = 398,780.11

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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.