Home / 450,560.31-621,770.95-243,828.55

Finding the Fourth Proportional to 450,560.31, 621,770.95 and 243,828.55

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Solution

The fourth proportional to 450,560.31, 621,770.95 and 243,828.55 is: 336,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,560.31 : 621,770.95 = 243,828.55 : x
  2. Step 2: Convert to fraction form
    450,560.31/621,770.95 = 243,828.55/x
  3. Step 3: Cross multiply
    450,560.31x = 621,770.95 × 243,828.55
  4. Step 4: Simplify right side
    450,560.31x = 151,605,507,006.62
  5. Step 5: Solve for x
    x = 151,605,507,006.62/450,560.31
  6. Step 6: Final answer
    x = 336,482.16

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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.