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Finding the Fourth Proportional to 476,159.65, 657,119.27 and 261,307.40

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Solution

The fourth proportional to 476,159.65, 657,119.27 and 261,307.40 is: 360,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,159.65 : 657,119.27 = 261,307.40 : x
  2. Step 2: Convert to fraction form
    476,159.65/657,119.27 = 261,307.40/x
  3. Step 3: Cross multiply
    476,159.65x = 657,119.27 × 261,307.40
  4. Step 4: Simplify right side
    476,159.65x = 171,710,130,229.67
  5. Step 5: Solve for x
    x = 171,710,130,229.67/476,159.65
  6. Step 6: Final answer
    x = 360,614.62

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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.