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Finding the Fourth Proportional to 530,818.47, 732,601.73 and 313,088.72

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Solution

The fourth proportional to 530,818.47, 732,601.73 and 313,088.72 is: 432,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,818.47 : 732,601.73 = 313,088.72 : x
  2. Step 2: Convert to fraction form
    530,818.47/732,601.73 = 313,088.72/x
  3. Step 3: Cross multiply
    530,818.47x = 732,601.73 × 313,088.72
  4. Step 4: Simplify right side
    530,818.47x = 229,369,338,865.46
  5. Step 5: Solve for x
    x = 229,369,338,865.46/530,818.47
  6. Step 6: Final answer
    x = 432,105.05

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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.