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Finding the Fourth Proportional to 586,185.49, 879,276.86 and 385,051.20

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Solution

The fourth proportional to 586,185.49, 879,276.86 and 385,051.20 is: 577,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,185.49 : 879,276.86 = 385,051.20 : x
  2. Step 2: Convert to fraction form
    586,185.49/879,276.86 = 385,051.20/x
  3. Step 3: Cross multiply
    586,185.49x = 879,276.86 × 385,051.20
  4. Step 4: Simplify right side
    586,185.49x = 338,566,610,075.23
  5. Step 5: Solve for x
    x = 338,566,610,075.23/586,185.49
  6. Step 6: Final answer
    x = 577,575.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.