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Finding the Fourth Proportional to 521,211.04, 719,303.04 and 291,763.84

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Solution

The fourth proportional to 521,211.04, 719,303.04 and 291,763.84 is: 402,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,211.04 : 719,303.04 = 291,763.84 : x
  2. Step 2: Convert to fraction form
    521,211.04/719,303.04 = 291,763.84/x
  3. Step 3: Cross multiply
    521,211.04x = 719,303.04 × 291,763.84
  4. Step 4: Simplify right side
    521,211.04x = 209,866,617,074.07
  5. Step 5: Solve for x
    x = 209,866,617,074.07/521,211.04
  6. Step 6: Final answer
    x = 402,651.90

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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.