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Finding the Fourth Proportional to 508,637.52, 761,190.12 and 316,432.98

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Solution

The fourth proportional to 508,637.52, 761,190.12 and 316,432.98 is: 473,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,637.52 : 761,190.12 = 316,432.98 : x
  2. Step 2: Convert to fraction form
    508,637.52/761,190.12 = 316,432.98/x
  3. Step 3: Cross multiply
    508,637.52x = 761,190.12 × 316,432.98
  4. Step 4: Simplify right side
    508,637.52x = 240,865,658,018.16
  5. Step 5: Solve for x
    x = 240,865,658,018.16/508,637.52
  6. Step 6: Final answer
    x = 473,550.71

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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.