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Finding the Fourth Proportional to 432,073.80, 648,110.70 and 369,088.20

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Solution

The fourth proportional to 432,073.80, 648,110.70 and 369,088.20 is: 553,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,073.80 : 648,110.70 = 369,088.20 : x
  2. Step 2: Convert to fraction form
    432,073.80/648,110.70 = 369,088.20/x
  3. Step 3: Cross multiply
    432,073.80x = 648,110.70 × 369,088.20
  4. Step 4: Simplify right side
    432,073.80x = 239,210,011,663.74
  5. Step 5: Solve for x
    x = 239,210,011,663.74/432,073.80
  6. Step 6: Final answer
    x = 553,632.30

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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.