Home / 712,984.32-983,918.08-395,032.32

Finding the Fourth Proportional to 712,984.32, 983,918.08 and 395,032.32

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Solution

The fourth proportional to 712,984.32, 983,918.08 and 395,032.32 is: 545,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,984.32 : 983,918.08 = 395,032.32 : x
  2. Step 2: Convert to fraction form
    712,984.32/983,918.08 = 395,032.32/x
  3. Step 3: Cross multiply
    712,984.32x = 983,918.08 × 395,032.32
  4. Step 4: Simplify right side
    712,984.32x = 388,679,441,832.35
  5. Step 5: Solve for x
    x = 388,679,441,832.35/712,984.32
  6. Step 6: Final answer
    x = 545,144.45

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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.