Home / 1,205,050.76-1,663,030.41-688,831.28

Finding the Fourth Proportional to 1,205,050.76, 1,663,030.41 and 688,831.28

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Solution

The fourth proportional to 1,205,050.76, 1,663,030.41 and 688,831.28 is: 950,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,050.76 : 1,663,030.41 = 688,831.28 : x
  2. Step 2: Convert to fraction form
    1,205,050.76/1,663,030.41 = 688,831.28/x
  3. Step 3: Cross multiply
    1,205,050.76x = 1,663,030.41 × 688,831.28
  4. Step 4: Simplify right side
    1,205,050.76x = 1,145,547,365,999.22
  5. Step 5: Solve for x
    x = 1,145,547,365,999.22/1,205,050.76
  6. Step 6: Final answer
    x = 950,621.67

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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.