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Finding the Fourth Proportional to 482,484.47, 666,276.77 and 310,700.57

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Solution

The fourth proportional to 482,484.47, 666,276.77 and 310,700.57 is: 429,055.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,484.47 : 666,276.77 = 310,700.57 : x
  2. Step 2: Convert to fraction form
    482,484.47/666,276.77 = 310,700.57/x
  3. Step 3: Cross multiply
    482,484.47x = 666,276.77 × 310,700.57
  4. Step 4: Simplify right side
    482,484.47x = 207,012,572,328.95
  5. Step 5: Solve for x
    x = 207,012,572,328.95/482,484.47
  6. Step 6: Final answer
    x = 429,055.41

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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.