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Finding the Fourth Proportional to 425,120.04, 586,707.10 and 317,503.24

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Solution

The fourth proportional to 425,120.04, 586,707.10 and 317,503.24 is: 438,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,120.04 : 586,707.10 = 317,503.24 : x
  2. Step 2: Convert to fraction form
    425,120.04/586,707.10 = 317,503.24/x
  3. Step 3: Cross multiply
    425,120.04x = 586,707.10 × 317,503.24
  4. Step 4: Simplify right side
    425,120.04x = 186,281,402,920.48
  5. Step 5: Solve for x
    x = 186,281,402,920.48/425,120.04
  6. Step 6: Final answer
    x = 438,185.42

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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.