Home / 678,097.19-1,017,145.73-528,449.45

Finding the Fourth Proportional to 678,097.19, 1,017,145.73 and 528,449.45

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Solution

The fourth proportional to 678,097.19, 1,017,145.73 and 528,449.45 is: 792,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,097.19 : 1,017,145.73 = 528,449.45 : x
  2. Step 2: Convert to fraction form
    678,097.19/1,017,145.73 = 528,449.45/x
  3. Step 3: Cross multiply
    678,097.19x = 1,017,145.73 × 528,449.45
  4. Step 4: Simplify right side
    678,097.19x = 537,510,097,823.74
  5. Step 5: Solve for x
    x = 537,510,097,823.74/678,097.19
  6. Step 6: Final answer
    x = 792,674.12

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Double scale
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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.