Home / 917,435,211.12-1,266,019,750.53-535,992,601.50

Finding the Fourth Proportional to 917,435,211.12, 1,266,019,750.53 and 535,992,601.50

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Solution

The fourth proportional to 917,435,211.12, 1,266,019,750.53 and 535,992,601.50 is: 739,645,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,435,211.12 : 1,266,019,750.53 = 535,992,601.50 : x
  2. Step 2: Convert to fraction form
    917,435,211.12/1,266,019,750.53 = 535,992,601.50/x
  3. Step 3: Cross multiply
    917,435,211.12x = 1,266,019,750.53 × 535,992,601.50
  4. Step 4: Simplify right side
    917,435,211.12x = 678,577,219,636,955,648
  5. Step 5: Solve for x
    x = 678,577,219,636,955,648/917,435,211.12
  6. Step 6: Final answer
    x = 739,645,929.67

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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.