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Finding the Fourth Proportional to 585,426.40, 876,827.40 and 480,450.40

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Solution

The fourth proportional to 585,426.40, 876,827.40 and 480,450.40 is: 719,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,426.40 : 876,827.40 = 480,450.40 : x
  2. Step 2: Convert to fraction form
    585,426.40/876,827.40 = 480,450.40/x
  3. Step 3: Cross multiply
    585,426.40x = 876,827.40 × 480,450.40
  4. Step 4: Simplify right side
    585,426.40x = 421,272,075,060.96
  5. Step 5: Solve for x
    x = 421,272,075,060.96/585,426.40
  6. Step 6: Final answer
    x = 719,598.70

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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.