Home / 438,368.02-605,085.71-257,153.20

Finding the Fourth Proportional to 438,368.02, 605,085.71 and 257,153.20

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Solution

The fourth proportional to 438,368.02, 605,085.71 and 257,153.20 is: 354,952.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,368.02 : 605,085.71 = 257,153.20 : x
  2. Step 2: Convert to fraction form
    438,368.02/605,085.71 = 257,153.20/x
  3. Step 3: Cross multiply
    438,368.02x = 605,085.71 × 257,153.20
  4. Step 4: Simplify right side
    438,368.02x = 155,599,725,315.01
  5. Step 5: Solve for x
    x = 155,599,725,315.01/438,368.02
  6. Step 6: Final answer
    x = 354,952.27

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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.