Home / 921,685.23-1,382,527.85-290,662.83

Finding the Fourth Proportional to 921,685.23, 1,382,527.85 and 290,662.83

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Solution

The fourth proportional to 921,685.23, 1,382,527.85 and 290,662.83 is: 435,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,685.23 : 1,382,527.85 = 290,662.83 : x
  2. Step 2: Convert to fraction form
    921,685.23/1,382,527.85 = 290,662.83/x
  3. Step 3: Cross multiply
    921,685.23x = 1,382,527.85 × 290,662.83
  4. Step 4: Simplify right side
    921,685.23x = 401,849,455,981.50
  5. Step 5: Solve for x
    x = 401,849,455,981.50/921,685.23
  6. Step 6: Final answer
    x = 435,994.25

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Double scale
Find fourth proportional to 921,686.23, 1,382,529.35 and 290,663.83
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.