Home / 808,420.53-1,115,428.53-459,533.55

Finding the Fourth Proportional to 808,420.53, 1,115,428.53 and 459,533.55

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Solution

The fourth proportional to 808,420.53, 1,115,428.53 and 459,533.55 is: 634,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,420.53 : 1,115,428.53 = 459,533.55 : x
  2. Step 2: Convert to fraction form
    808,420.53/1,115,428.53 = 459,533.55/x
  3. Step 3: Cross multiply
    808,420.53x = 1,115,428.53 × 459,533.55
  4. Step 4: Simplify right side
    808,420.53x = 512,576,835,667.50
  5. Step 5: Solve for x
    x = 512,576,835,667.50/808,420.53
  6. Step 6: Final answer
    x = 634,047.28

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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.