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Finding the Fourth Proportional to 546,075.17, 753,416.74 and 316,586.65

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Solution

The fourth proportional to 546,075.17, 753,416.74 and 316,586.65 is: 436,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,075.17 : 753,416.74 = 316,586.65 : x
  2. Step 2: Convert to fraction form
    546,075.17/753,416.74 = 316,586.65/x
  3. Step 3: Cross multiply
    546,075.17x = 753,416.74 × 316,586.65
  4. Step 4: Simplify right side
    546,075.17x = 238,521,680,187.59
  5. Step 5: Solve for x
    x = 238,521,680,187.59/546,075.17
  6. Step 6: Final answer
    x = 436,792.76

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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.