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Finding the Fourth Proportional to 614,424.80, 921,637.20 and 362,482.40

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Solution

The fourth proportional to 614,424.80, 921,637.20 and 362,482.40 is: 543,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,424.80 : 921,637.20 = 362,482.40 : x
  2. Step 2: Convert to fraction form
    614,424.80/921,637.20 = 362,482.40/x
  3. Step 3: Cross multiply
    614,424.80x = 921,637.20 × 362,482.40
  4. Step 4: Simplify right side
    614,424.80x = 334,077,264,185.28
  5. Step 5: Solve for x
    x = 334,077,264,185.28/614,424.80
  6. Step 6: Final answer
    x = 543,723.60

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Similar ratio
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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.