Home / 926,984.68-1,390,127.08-427,998.76

Finding the Fourth Proportional to 926,984.68, 1,390,127.08 and 427,998.76

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Solution

The fourth proportional to 926,984.68, 1,390,127.08 and 427,998.76 is: 641,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,984.68 : 1,390,127.08 = 427,998.76 : x
  2. Step 2: Convert to fraction form
    926,984.68/1,390,127.08 = 427,998.76/x
  3. Step 3: Cross multiply
    926,984.68x = 1,390,127.08 × 427,998.76
  4. Step 4: Simplify right side
    926,984.68x = 594,972,666,482.42
  5. Step 5: Solve for x
    x = 594,972,666,482.42/926,984.68
  6. Step 6: Final answer
    x = 641,836.57

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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.