Home / 841,000.32-1,260,614.59-419,390.46

Finding the Fourth Proportional to 841,000.32, 1,260,614.59 and 419,390.46

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Solution

The fourth proportional to 841,000.32, 1,260,614.59 and 419,390.46 is: 628,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,000.32 : 1,260,614.59 = 419,390.46 : x
  2. Step 2: Convert to fraction form
    841,000.32/1,260,614.59 = 419,390.46/x
  3. Step 3: Cross multiply
    841,000.32x = 1,260,614.59 × 419,390.46
  4. Step 4: Simplify right side
    841,000.32x = 528,689,732,782.81
  5. Step 5: Solve for x
    x = 528,689,732,782.81/841,000.32
  6. Step 6: Final answer
    x = 628,643.91

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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.