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Finding the Fourth Proportional to 578,417.96, 798,211.22 and 333,312.67

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Solution

The fourth proportional to 578,417.96, 798,211.22 and 333,312.67 is: 459,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,417.96 : 798,211.22 = 333,312.67 : x
  2. Step 2: Convert to fraction form
    578,417.96/798,211.22 = 333,312.67/x
  3. Step 3: Cross multiply
    578,417.96x = 798,211.22 × 333,312.67
  4. Step 4: Simplify right side
    578,417.96x = 266,053,912,962.16
  5. Step 5: Solve for x
    x = 266,053,912,962.16/578,417.96
  6. Step 6: Final answer
    x = 459,968.28

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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.