Home / 717,463.18-990,061.75-445,525.22

Finding the Fourth Proportional to 717,463.18, 990,061.75 and 445,525.22

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Solution

The fourth proportional to 717,463.18, 990,061.75 and 445,525.22 is: 614,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,463.18 : 990,061.75 = 445,525.22 : x
  2. Step 2: Convert to fraction form
    717,463.18/990,061.75 = 445,525.22/x
  3. Step 3: Cross multiply
    717,463.18x = 990,061.75 × 445,525.22
  4. Step 4: Simplify right side
    717,463.18x = 441,097,482,014.40
  5. Step 5: Solve for x
    x = 441,097,482,014.40/717,463.18
  6. Step 6: Final answer
    x = 614,801.56

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Double scale
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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.