Finding the Fourth Proportional to 1,248,697.60, 1,872,856.32 and 407,248
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Solution
The fourth proportional to 1,248,697.60, 1,872,856.32 and 407,248 is: 610,810.01
Step by Step Solution
- Step 1: Write the proportion equation
1,248,697.60 : 1,872,856.32 = 407,248 : x - Step 2: Convert to fraction form
1,248,697.60/1,872,856.32 = 407,248/x - Step 3: Cross multiply
1,248,697.60x = 1,872,856.32 × 407,248 - Step 4: Simplify right side
1,248,697.60x = 762,716,990,607.36 - Step 5: Solve for x
x = 762,716,990,607.36/1,248,697.60 - Step 6: Final answer
x = 610,810.01
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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.