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Finding the Fourth Proportional to 528,075.45, 792,113.18 and 470,014.65

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Solution

The fourth proportional to 528,075.45, 792,113.18 and 470,014.65 is: 705,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,075.45 : 792,113.18 = 470,014.65 : x
  2. Step 2: Convert to fraction form
    528,075.45/792,113.18 = 470,014.65/x
  3. Step 3: Cross multiply
    528,075.45x = 792,113.18 × 470,014.65
  4. Step 4: Simplify right side
    528,075.45x = 372,304,796,708.01
  5. Step 5: Solve for x
    x = 372,304,796,708.01/528,075.45
  6. Step 6: Final answer
    x = 705,021.98

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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.