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Finding the Fourth Proportional to 708,134.34, 977,225.51 and 385,844.48

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Solution

The fourth proportional to 708,134.34, 977,225.51 and 385,844.48 is: 532,465.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,134.34 : 977,225.51 = 385,844.48 : x
  2. Step 2: Convert to fraction form
    708,134.34/977,225.51 = 385,844.48/x
  3. Step 3: Cross multiply
    708,134.34x = 977,225.51 × 385,844.48
  4. Step 4: Simplify right side
    708,134.34x = 377,057,064,827.17
  5. Step 5: Solve for x
    x = 377,057,064,827.17/708,134.34
  6. Step 6: Final answer
    x = 532,465.44

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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.