Home / 528,984.40-730,221.95-357,135.15

Finding the Fourth Proportional to 528,984.40, 730,221.95 and 357,135.15

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Solution

The fourth proportional to 528,984.40, 730,221.95 and 357,135.15 is: 492,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,984.40 : 730,221.95 = 357,135.15 : x
  2. Step 2: Convert to fraction form
    528,984.40/730,221.95 = 357,135.15/x
  3. Step 3: Cross multiply
    528,984.40x = 730,221.95 × 357,135.15
  4. Step 4: Simplify right side
    528,984.40x = 260,787,925,646.54
  5. Step 5: Solve for x
    x = 260,787,925,646.54/528,984.40
  6. Step 6: Final answer
    x = 492,997.38

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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.