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Finding the Fourth Proportional to 584,015.25, 805,210.83 and 487,358.36

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Solution

The fourth proportional to 584,015.25, 805,210.83 and 487,358.36 is: 671,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,015.25 : 805,210.83 = 487,358.36 : x
  2. Step 2: Convert to fraction form
    584,015.25/805,210.83 = 487,358.36/x
  3. Step 3: Cross multiply
    584,015.25x = 805,210.83 × 487,358.36
  4. Step 4: Simplify right side
    584,015.25x = 392,426,225,536.99
  5. Step 5: Solve for x
    x = 392,426,225,536.99/584,015.25
  6. Step 6: Final answer
    x = 671,945.17

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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.