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Finding the Fourth Proportional to 593,281.10, 818,501.93 and 438,603.80

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Solution

The fourth proportional to 593,281.10, 818,501.93 and 438,603.80 is: 605,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,281.10 : 818,501.93 = 438,603.80 : x
  2. Step 2: Convert to fraction form
    593,281.10/818,501.93 = 438,603.80/x
  3. Step 3: Cross multiply
    593,281.10x = 818,501.93 × 438,603.80
  4. Step 4: Simplify right side
    593,281.10x = 358,998,054,612.32
  5. Step 5: Solve for x
    x = 358,998,054,612.32/593,281.10
  6. Step 6: Final answer
    x = 605,106.17

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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.