Home / 911,535,541.65-1,257,920,280.95-493,847,814.65

Finding the Fourth Proportional to 911,535,541.65, 1,257,920,280.95 and 493,847,814.65

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Solution

The fourth proportional to 911,535,541.65, 1,257,920,280.95 and 493,847,814.65 is: 681,510,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,535,541.65 : 1,257,920,280.95 = 493,847,814.65 : x
  2. Step 2: Convert to fraction form
    911,535,541.65/1,257,920,280.95 = 493,847,814.65/x
  3. Step 3: Cross multiply
    911,535,541.65x = 1,257,920,280.95 × 493,847,814.65
  4. Step 4: Simplify right side
    911,535,541.65x = 621,221,181,742,312,576
  5. Step 5: Solve for x
    x = 621,221,181,742,312,576/911,535,541.65
  6. Step 6: Final answer
    x = 681,510,652.47

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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.