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Finding the Fourth Proportional to 616,121.58, 849,695.16 and 513,096.87

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Solution

The fourth proportional to 616,121.58, 849,695.16 and 513,096.87 is: 707,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,121.58 : 849,695.16 = 513,096.87 : x
  2. Step 2: Convert to fraction form
    616,121.58/849,695.16 = 513,096.87/x
  3. Step 3: Cross multiply
    616,121.58x = 849,695.16 × 513,096.87
  4. Step 4: Simplify right side
    616,121.58x = 435,975,927,050.15
  5. Step 5: Solve for x
    x = 435,975,927,050.15/616,121.58
  6. Step 6: Final answer
    x = 707,613.47

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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.