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Finding the Fourth Proportional to 615,941.93, 849,915.88 and 343,975.16

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Solution

The fourth proportional to 615,941.93, 849,915.88 and 343,975.16 is: 474,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,941.93 : 849,915.88 = 343,975.16 : x
  2. Step 2: Convert to fraction form
    615,941.93/849,915.88 = 343,975.16/x
  3. Step 3: Cross multiply
    615,941.93x = 849,915.88 × 343,975.16
  4. Step 4: Simplify right side
    615,941.93x = 292,349,952,074.39
  5. Step 5: Solve for x
    x = 292,349,952,074.39/615,941.93
  6. Step 6: Final answer
    x = 474,638.82

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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.