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Finding the Fourth Proportional to 606,528,026.70, 909,792,040.05 and 402,286,721.10

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Solution

The fourth proportional to 606,528,026.70, 909,792,040.05 and 402,286,721.10 is: 603,430,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,528,026.70 : 909,792,040.05 = 402,286,721.10 : x
  2. Step 2: Convert to fraction form
    606,528,026.70/909,792,040.05 = 402,286,721.10/x
  3. Step 3: Cross multiply
    606,528,026.70x = 909,792,040.05 × 402,286,721.10
  4. Step 4: Simplify right side
    606,528,026.70x = 365,997,256,674,594,368
  5. Step 5: Solve for x
    x = 365,997,256,674,594,368/606,528,026.70
  6. Step 6: Final answer
    x = 603,430,081.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.