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Finding the Fourth Proportional to 343,303.95, 473,757.18 and 190,342.20

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Solution

The fourth proportional to 343,303.95, 473,757.18 and 190,342.20 is: 262,670.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,303.95 : 473,757.18 = 190,342.20 : x
  2. Step 2: Convert to fraction form
    343,303.95/473,757.18 = 190,342.20/x
  3. Step 3: Cross multiply
    343,303.95x = 473,757.18 × 190,342.20
  4. Step 4: Simplify right side
    343,303.95x = 90,175,983,907.00
  5. Step 5: Solve for x
    x = 90,175,983,907.00/343,303.95
  6. Step 6: Final answer
    x = 262,670.98

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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.